Go back to the manufacturers and ask for tech support - you would need the device available to you and running to stand any chance of working out what is wrong and we have neither any access to it nor any idea what it expects! It's possible the...

TcpClient

TCP/IP

Tcp listening for a GPS device

5 Apr 2024 by Vimalsoft(Pty) Ltd

Good Day All its been years since i posted something, am a bit stuck on Something. i bought a GPS device from china and was given a Protocol document and i have written a TCP listening and hosted it on the server. i can use TCP test tools...

TcpClient

TCP/IP

Why this udp socket not work when I run it in pc outside the network ?

16 Mar 2024 by Line Item

I would try running this from a command line, with some adjustments for that to make it a simple command. Get that to work then add to that a little at a time. Maybe then try moving that to PowerShell. Get that to work then add more until you...

How do I send message on networkstream with multithread ?

12 Nov 2023 by headshot9x

I have a WinForms application C#. In here, I used TcpClient/Socket and NetworkStream. I have created multiple thread to handle sending/receiving from client/server. Assuming I'm forced to use TcpClient/Socket, I won't use other libraries or...

Why boost::asio TCP server with strand closes the connection, cause the socket is "bad"

7 Nov 2023 by bartello

I wrote a very simple chat server using boost::asio. Everything works as it should. As I just redid the TCPSession class to use "strand", there was an error in the functionality of the class: The server accepts a connection and immediately drops...

C++17

Boost

TcpClient

Vb.net how to solve - specified argument was out of the range of valid values."parameter name: size"

26 Jun 2023 by Member 15070471

Visual Studio 2019, VB.Net. Just getting back into coding after many years and thought I would start by setting up a simple chat app in VB.Net. I've downloaded many examples of UDP and TCP/IP, including here, from Code Project, and all have the...

TcpClient

UDP

Vb.net how to solve - specified argument was out of the range of valid values."parameter name: size"

26 Jun 2023 by OriginalGriff

RecieveBufferSize is not the same as the number of bytes in the buffer itself: it's likely to be considerably bigger. So when you try to read RecieveBufferSize into your array: Dim inStream(10024) As Byte buffSize =...

TcpClient

UDP

Tcp socket is closing after some iterations of while(true)[C#]

30 Jan 2023 by Member 14623639

I have a client which connects to server with 3 connections and server is receiving all the data from these connections but after some processing in the client side server detects that these 3 connections are disconnected. I tried executing the...

Raspberry pico-w TCP query

18 Jan 2023 by Les Wilkinson

Hello, I'm using an rpi pico-w as a tcp client in a logging project (written in 'C'). By copying the examples, the code is running. After successfully communicating a number of times the "tcp_client_open" function fails when "tcp_new_ip_open"...

TcpClient

Raspberry pico-w TCP query

18 Jan 2023 by Richard MacCutchan

Quote: Please could somebody point me to documentation The documentation, if it exists, is likely to come from the same place that the code came from. But we don't know where that is, since you have not said where you got it.

TcpClient

How do I send data to specific client from another client with a server in middle[C#]

4 Dec 2022 by Member 14623639

I have searched everywhere but couldn't find as they are all answering to send message to all clients. What I want to achieve is multiple clients request to server to request data from another client and other client sends data to server telling...

"Parameter is not valid" TCP screen sharing program [C#]

4 Nov 2022 by Member 14623639

I know this is a common question people ask but for days I have been researching and couldn't find a way that will help me. I'm developing a screen sharing program and using TCP to send the desktop screenshots over the networkstream. I tried...

"Parameter is not valid" TCP screen sharing program [C#]

4 Nov 2022 by Chris Copeland

In addition to RickZeeland's comment, another important thing to remember when it comes to network/streaming is that there's no guarantee how many bytes you'll receive at any given time. byte[] bytes = new byte[1000000]; ...

"Parameter is not valid" TCP screen sharing program [C#]

4 Nov 2022 by RickZeeland

Try this CodeProject article: Windows Remote Desktop Application[^] It probably has TCP routines you can use.

Why this udp socket not work when I run it in pc outside the network ?

26 Sep 2022 by Death Smoke

I'm trying to make a connection between two computers both of them are using tp-link adapter , but i'm not receving anything from client . #include #include using namespace std; int main() { ...

How to create grid with columns using WPF in C#?

7 Sep 2022 by Gcobani Mkontwana

I a new to WPF but so far managed to create a status bar, but i want to create a grid with columns. I want to create this logic to it; // Requirement that must implement. 0 I need some help, I have status bar but want to implement following...

How to create grid with columns using WPF in C#?

7 Sep 2022 by Maciej Los

Start here: How to: Create a Grid Element - WPF .NET Framework | Microsoft Docs[^]

Only one usage of each socket address (protocol/network address/port) is normally permitted

6 Jan 2022 by Nitin Surya

Hello I have developed tcplistener in vb.net using tcpServer.dll. ref C# TCP Server[^] here everything work fine till there are 2-4 connection, but if connection size increases and i try to stop the listing, application closes. Next time i try to open the same port it shows me Only one...

TcpClient

TCP/IP

Tcpclient communication with thread in VB.NET

21 Dec 2021 by Hu Christian

Hi, I'm using Net.Sockets TCPClient to record data from a instrument. Because I need to continuously listen the output data from the instrument, then according to the data to communicate with some commands, I run the program with a thread(named...

TcpClient

Stackoverflowexception :- tcpclient

27 Jul 2021 by Magic Wonder

Dear All, Here I have a client whose code is as below. This code is connects to server and runs perfectly when server is up. Issue is if server is down then it gives System.StackOverFlowException after 100 loops. However, if server is up and...

TcpClient

Stackoverflowexception :- tcpclient

27 Jul 2021 by OriginalGriff

Quote: System.StackOverFlowException is here after 100 loops That isn't a loop: it's a recursive call. So each time you call RemoteConnect it takes a bit more stack space - and it's not massive to start with - so at some point it will run out of...

TcpClient

Stackoverflowexception :- tcpclient

27 Jul 2021 by Richard MacCutchan

You have a recursive call in your code: If lconnecttries

TcpClient

How to connect multiple devices with server using TCP?

5 Apr 2021 by Member 14743579

I am trying to connect multiple devices with server using same port number with the help TCP but i am not able to understand the logic to how to connect multiple devices with server using same port and how to communicate with device after the...

TcpClient

socket.io

TCP/IP

How to connect multiple devices with server using TCP?

5 Apr 2021 by Greg Utas

If you want to look at some C++ code for a thread that handles TCP, on either the server or client side, here[^] is an example. Start in the Enter function on line 332. This has been tested under load on Windows. The comments in its header[^]...

TcpClient

socket.io

TCP/IP

How to connect multiple devices with server using TCP?

5 Apr 2021 by Richard MacCutchan

Whenever a client connection request is accepted by the server, the system returns the new file descriptor for that socket. So you need to keep a list of all socketfds as the server accepts them in order to know which client you are communicating...

TcpClient

socket.io

TCP/IP

Hello C#! C++ at Your Service

23 Mar 2021 by Espen Harlinn

A .NET Core client implemented in C# using TcpClient and a multi-threaded server implemented in C++

Analyzing TCP header

8 Sep 2020 by Patrice T

Quote: 1. What is the sequence number? 2. What is the destination port number? 3. What is the source port number? 4. What is the length of the TCP header? 5. What is the acknowledgement number? What about doing basic research on internet before...

Keep running TCP listener in .NET core console app

30 Jun 2020 by Member 12885549

I am creating an app which has to wait for TCP messages and when there's one - create text file with that message data. For that I created .NET core console application. However I stumbled upon problem that after writing message/getting exception...

Tcp server problem with random connections

21 Feb 2020 by WOLF 2018

i fixed it. it was with the User_Check(data[0], Users) the check i did crashed the client and disconnected it without an error message

Tcp server problem with random connections

21 Feb 2020 by WOLF 2018

look i am trying to make a TCP server for a private chatroom with AES encryption. but the problem i am facing is that when one client joins it works fine. but when two join it become odd like a new client would join even tho they are only two...

Tcp server problem with random connections

20 Feb 2020 by Richard MacCutchan

I do not have time to analyse all your code, but the following looks a little odd: if(tcp != clients[i]) // if not the client we want ... ? { So if the item you find in your list does not match the one you are...

How to get text as well as images using sockets?

23 Aug 2019 by Muhammad Afaq Riaz

I am working with sockets. I have written code for python server which will receive data from a c# client and will display it in the console. The data may be an image or a text. Now problem is that how to differentiate between image and text because text must be displayed in the console and...

How to get text as well as images using sockets?

23 Aug 2019 by Richard MacCutchan

You need to add some extra data to each message that identifies what is being sent - text or image.

C#: how divide TCP input into multiple parts?

4 Aug 2019 by Member 14179902

I want to divide the integrated input I get from a TCP connection(in bytes) into several different byte arrays.I have a server and client. server that encrypts a message by 3DES and encrypts the key and IV by RSA. Then it concatenates them together like this (plaintext + ciphertext + key + IV)...

TcpClient

C#: how divide TCP input into multiple parts?

4 Aug 2019 by RickZeeland

See: Array.CopyTo Method (System) | Microsoft Docs[^] Or the alternative: Buffer.BlockCopy[^]

TcpClient

C# how to close the connections listed in tcpconnectioninformation

4 Aug 2019 by Leonid Kazakov

First of all visit CurrPorts: Monitoring TCP/IP network connections on Windows and download programm CurrPorts. It seems that C # cannot solve the problem of closing the port. We will use the utility: private void ClearConnection() { string programma = Directory.GetCurrentDirectory() +...

TcpClient

TCP/IP

C# how to close the connections listed in tcpconnectioninformation

4 Aug 2019 by Leonid Kazakov

I create a list of connections using TcpConnectionInformation, after it I find in that list the address which used in my program by the external IP RemoteEndPoint. Which command used to close the found connection? This task is similar to the Russinovich TCPView program. private void...

TcpClient

TCP/IP

How to detect closed TCP connection when client disconnected disgracfully ?

23 Apr 2019 by User 11060979

TCP keepalive These looks promising, answer 3 in .net - Instantly detect client disconnection from server socket - Stack Overflow[^] and also here: http://tldp.org/HOWTO/TCP-Keepalive-HOWTO/overview.html[^] I hope it helps.

How to detect closed TCP connection when client disconnected disgracfully ?

23 Apr 2019 by DoingWork

How to detect closed TCP connection when Client disconnected disgracfully i.e sudden power off ? Following method don't work when client disconnects disgracefully. What I have tried: if (socket != null) { bool part1 = socket.Poll(1000,...

How to detect closed TCP connection when client disconnected disgracfully ?

23 Apr 2019 by RickZeeland

I used something like this: bool connectedLocal = true; using (var socketTemp = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp)) { socketTemp.Connect(ip, port); // Loop until prg...

How the server socket works

21 Mar 2019 by Richard MacCutchan

Please use Google to find research information. The question is far too broad to be answered in a quick answers forum.

.NET

TcpClient

SOAP

Performance issues on server / client application

18 Jan 2019 by HobbyProggy

Hi there, to enhance my current Software i wanted to switch the datalogic to a server application that has faster connection to the database and is able to cache data. So far i wrote a working server app and a client that connects to this server. Currently i am experiencing a performance issue...

client-server

TcpClient

Performance issues on server / client application

18 Jan 2019 by Rob Philpott

You've got an interesting mix of different types of async code in there! And I can see unguarded use of collection cross-thread etc. But this: while(!_clientStream.DataAvailable) { } looks like a very tight loop, which is likely to get your CPU fan attempting take off. At the very least slap...

client-server

TcpClient

Smtp RCPT to testing

16 Nov 2018 by Dominick Marciano

I am trying to connect to mail servers (using a TcpClient) in order to test if an email address is valid without sending an actual email (this is for a client). I am currently using GMail for testing and I am able to successfully connect to the SMTP server. However, when I try to perform a...

.NET

TcpClient

SMTP

How to make windows service read from TCP port

28 Oct 2018 by sirisha.basavaraju

The Windows service is trying to connect to TCP Port and read data. The service worked fine on developer machine but when it is deployed to a laptop for demo purpose the service is trying to connect to the TCP but not getting connected. Please suggest if any permissions are missing. Also, I...

WPF

TcpClient

service

Socket Programming in C++ using boost.asio: TCP Server and Client

22 Oct 2018 by MehreenTahir

This article will help you get started with socket programming in C++. We will build a TCP server and client using boost.asio library in C++.

How to read from TCP port on my system

16 Oct 2018 by Kornfeld Eliyahu Peter

TcpListener.AcceptTcpClient is a blocking method. It will not return until a connection made... In your case it means that no connection on that address and port... As you state that some test software does recognize the device, you probably have the wrong settings (IP/port)...

TcpClient

How to read from TCP port on my system

16 Oct 2018 by sirisha.basavaraju

Hi all, I have to write a service, where the service has to listen continuosly from the TCP port of the system where it is deployed. I tried few Console Examples but dont know what the mistake they are not working. thanks in advance. What I have tried: I tried using the following code: ...

TcpClient

UI freezes when sending image over TCP

15 Aug 2018 by Member 13714031

I write this code to send screenshot to multiple connected clients.Works fine on clients end, but freezes the UI of application on server side.I don't understand what cause that problem. public void LoopClients() { while (_isRunning) { TcpClient...

C# acces vars & controls from static field not working

12 Aug 2018 by OriginalGriff

Static objects and static methods are special: they are associated with the whole class, not with a single instance of the class - and as such, a static method cannot access any non-static objects in a class because it has no idea which instance it should use! Think of it like this: public...

TcpClient

C# acces vars & controls from static field not working

12 Aug 2018 by BatLine

I tried turning a console app into an windows form and everything went well until I wanted to make the received message (it's like a chat client) show in a textbox. Client Form: using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using...

TcpClient

Only one usage of each socket address (protocol/network address/port) is normally permitted

25 Jul 2018 by Jochen Arndt

The problem is that the process who owned the socket (your tcplistener application) did not perform a proper shutdown of the related connections and / or sockets. In such cases, the port is blocked for some time - or even until reboot - before it can be reused. To avoid this, you have to...

TcpClient

TCP/IP

Is communication between a server and a client's USB device possible?

19 Apr 2018 by Patrice T

By principle, a remote server don't have access to a PC if user don't cooperate. Cooperation can be HDD or printer sharing, but you need credentials. Cooperation can be client opening a web app from server, it open access to cam, but only if client allow it. In order to expose the cam to web app...

TcpClient

serial-port

Is communication between a server and a client's USB device possible?

19 Apr 2018 by Member 13695363

I would like to communicate with a USB device attached to a client system via Internet, I have to connect to the port the device is connected to on the client side, and then invoke the execution of a function on my side, So in a scence I need to communicate with that USB device without having...

TcpClient

serial-port

Is communication between a server and a client's USB device possible?

19 Apr 2018 by F-ES Sitecore

Would you want services accessing your USB devices? Of course this isn't possible.

TcpClient

serial-port

How to stop all clients from disconnecting from server.

16 Apr 2018 by Wendelius

I didn't go through all the code but looking at the exception handling in doChat it looks like when an exception occurs you assume that the client has disconnected. However, there are tons of reasons why an exception might occur. So my suggestion is, modify the exception handling so that you...

sockets

TcpClient

TCP/IP

How to stop all clients from disconnecting from server.

16 Apr 2018 by Member 13759064

So I have created a client and a server howerver whenever I run multiple clients and then close 1 of them the other clients disconnect as soon as they try to message other active clients. This may be due to a mistake inside my code however I still cant manage to find where the problem lies. ...

sockets

TcpClient

TCP/IP

Unable to create a dynamic byte[] to process data received through async TCP socket response

18 Mar 2018 by Richard MacCutchan

You are (effectively) using a static data buffer for your input messages, so any time some data arrives it has the potential to destroy what is already there. You should allocate your buffer in the async event handler, capture the data, and pass the buffer off to the method that will process it....

TcpClient

asynchronous

Unable to create a dynamic byte[] to process data received through async TCP socket response

18 Mar 2018 by honeyashu

In my C# code I am receiving a byte[1024] from a DLL through TCP link. Code I did for this I am attaching below. The workflow is An asynchronous packet gets received at tcp port into a byte array, which then gets copied to a different array for processing. This copied array then gets...

TcpClient

asynchronous

Tcpclient doesn't wait for data to arrive before completing

28 Jan 2018 by Phix1964

Ok, So I'm not an expert or anywhere close. I write in VB as a hobby and have written plenty of small apps and the majority of them are for old serial device connections. Now those devices are connecting via TCP. Easy, So I thought... My server is a embedded SBC and very structured in its...

TcpClient

Tcpclient doesn't wait for data to arrive before completing

27 Jan 2018 by Richard MacCutchan

You are making an invalid assumption in your code. See NetworkStream.Read Method (Byte[], Int32, Int32) (System.Net.Sockets)[^], where it explains how much (if any) data is returned on the read command. Do not assume that you will receive all the data on a single read call. TCP/IP is not like...

TcpClient

Send data socket VB.NET

16 Jan 2018 by Member 10296419

Hi i have client and server and work fine.Server send file to client and client receive it good,But when i try again to resend another file server and client they lose communication.Please Help me?thks Server Code: Private Sub Button1_Click(sender As Object, e As EventArgs) Handles...

Send data socket VB.NET

16 Jan 2018 by pdoxtader

It appears that calling Writer.Close() (BinaryWriter.Close) also closes the underlying stream - which in this case is your TcpClient. https://msdn.microsoft.com/en-us/library/system.io.binarywriter.close(v=vs.110).aspx - Pete

C# windows form TCP client cross thread operation not valid error?

12 Jan 2018 by Member 13479861

Hi, I am testing a Tcp client C# windows form application I am able to send data to Tcp server Software(Hercules 3.2.8) But when i sent data from Tcp server to windows form then i am getting the following error: System.InvalidOperationException: Cross-Thread operation not valid: Control...

C# windows form TCP client cross thread operation not valid error?

12 Jan 2018 by OriginalGriff

You cannot access any UI control from any thread other than the one it was created on: the UI thread (which is the only one running at the start of your app). If you try, you get a Cross-threading exception as you have seen. If you look at the documentation: Socket.BeginReceiveFrom Method...

How do I create an x509certificate2 object using a certificate, private key, and chain file?

24 Oct 2017 by Hendrik Vis

I'm trying to connect to a server coded using C++ and an openssl wrapper. I'm using C#. The server has provided me with: 1. A certificate (.crt - header of "-----BEGIN TRUSTED CERTIFICATE-----") 2. A private, encrypted key (.key - header of "-----BEGIN ENCRYPTED PRIVATE KEY-----"). This key is...

TcpClient

OpenSSL

certificate

Unable to connect with socket server from internet explorer.

3 Oct 2017 by SagarPatil44

Currently I have implemented one secure server using TCPListener and trying to connect to it from client which is, Javascript application through browser. I am trying to communicate using SSLStream and proper certificate is provided using following method. private static X509Certificate2...

C# how do I connect to machine through TCP/ip using appropriate login in the form of XML

21 Sep 2017 by RickZeeland

Here is a simple Client - Server example: Introduction to TCP client server in C#[^] Note that you will have to allow your program through Windows firewall. If you need authentication, see this example: Authenticate WebAPIs with Basic and Windows Authentication[^]

TcpClient

TcpChannel

TCP/IP

C# how do I connect to machine through TCP/ip using appropriate login in the form of XML

21 Sep 2017 by Member 3844375

I am new to TCP and I am trying to connect to a machine. I've been given the command to connect to the machine. which is in the form of xml. The port and IP to the machine is also provided, all i have to do is send the command. The documentation stipulates TCP/IP channels are required for...

TcpClient

TcpChannel

TCP/IP

How to send and receive TCP data on same port in VB.NET applicaton?

6 Sep 2017 by Nitin Surya

Hello, i want to send data from the same port on which i have received the data. for eg. i have made tcp listener using UNOLibs. so for receiving and sending is working ok. But the problem is if i receive data on port no 6666 then i need to reply from port no. 6666. i cannot find out the way to...

sockets

TcpClient

TCP/IP

How to send and receive TCP data on same port in VB.NET applicaton?

6 Sep 2017 by Graeme_Grant

There are plenty of articles right here on Code Project that cover this topic: TCP - CodeProject search[^] - Pick one.

sockets

TcpClient

TCP/IP

Is there any difference between those two implementations on sockets?

31 Jul 2017 by Member 13337752

I've made a client/Server app using TCP sockets, but clients stuck too often and they throw "Connection timed out" while reading for new messages from the Server. On both apps im using this: try{ do{ message=(String) input.readLine(); ...

Java

TcpClient

sockets

Is there any difference between those two implementations on sockets?

31 Jul 2017 by Thomas Daniels

Yes, there is a difference. In the first code block, when there's an error in the try block, you exit the do-while loop and go into catch. readLine does not get called anymore, because the code that goes after the catch block gets executed now. In the second code block, when there's an error...

Java

TcpClient

sockets

One client connected to multiple servers through TCP/I or sockets

5 May 2017 by m88120

I want to connect the Tcp client application to multiple socket listener.Is it is possible to make this type of connection if yes, please explain what can do to perform this.My scenario is:I have number of Socket listener and one TCP client, I want Tcp client make connection to all the...

sockets

TcpClient

TCP/IP

Receive image from byte TCPCLIENT

14 Apr 2017 by Hitmanlima

I send the image to the server, I noticed that it is receiving the image in several packages, I tried to join the buffers, but it is not working, if I put the image in the picturebox without joining the buffers the image is incomplete My project consists of several clients and a server that...

client-server

TcpClient

Receive image from byte TCPCLIENT

14 Apr 2017 by Hitmanlima

My solution is: Sending Img Dim netStream As NetworkStream Dim Formatter As IFormatter = New BinaryFormatter() Formatter.Serialize(netStream, img) Receive Img Dim netStream As NetworkStream Dim Formatter As IFormatter = New BinaryFormatter() Dim img As Image =...

client-server

TcpClient

TCP listener and Client

15 Dec 2016 by RAHUL(10217975)

Hello guysI am creating a wpf application in which I connect to android application through TCP listener. I made a separate class for tcp listener because i wanted to call it from all wpf forms.So till now its working fine from my main form but when i call tcp listener from another form i...

How to read data on networkstream upto specific character?

19 Oct 2016 by Member 11543226

I have written a code to receive data from networkstream and if data contains first character "$" then i identify this data as barcodes data, but sometimes when data is large like 7000byte at that time data coming in packets of different sizes but some bytes not detected as they miss "$" symbol...

C#4.0

TcpClient

networking

How to read data on networkstream upto specific character?

19 Oct 2016 by johannesnestler

Have a look on MSDN and inspect this sample to see a way how you could do it (it reads till but just replace with your special character(s)https://msdn.microsoft.com/de-de/library/fx6588te(v=vs.110).aspx

C#4.0

TcpClient

networking

I wrriten TCP server code in winform. How I host this code on remote server

6 Oct 2016 by Member 12682888

I am working on vehicle Tracking System. I did TCP listner server. I want to host this on server. how do i achieve it? or other than winform their is any way in .Net ThanksWhat I have tried:I am working on vehicle Tracking System. I did TCP listner server. I want to host this on...

.NET

TcpClient

TCP/IP

I wrriten TCP server code in winform. How I host this code on remote server

6 Oct 2016 by Member 12682888

thank for quick reply.I implement code in Windows Service. when i start service port goes open its OK, while after client connect its work, but when client send data to server automatically service stop.i dont know exact reason please help me

.NET

TcpClient

TCP/IP

I wrriten TCP server code in winform. How I host this code on remote server

6 Oct 2016 by F-ES Sitecore

Host it on what server? On the internet? If so hire a virtual server with (ideally) a fixed IP. You should implement your code as a Windows Service and install the service on your server.

.NET

TcpClient

TCP/IP

Slowdown in tcpclient connections

4 Sep 2016 by Menci Lucio

Hi,I wrote a client/server application, I used TcpServer an TcpClient objects to enable this communications.Server side I had no problem. It seems that when the client perform a request, the server reply so quickly. But Client side there is a little slowdown at the TcpClient...

TcpClient

sockets

Slowdown in tcpclient connections

4 Sep 2016 by Menci Lucio

[1]: no, i think not. It needs a second also if I use 127.0.0.1 as the address.For the other your points, I followed your sudgestions. But not for the ASCII encoded. There are more than a single path I have to follow, some times I don't receive a ASCII string. Then the server writes the...

TcpClient

sockets

Slowdown in tcpclient connections

31 Aug 2016 by Rob Philpott

It might be better putting this in the discussions rather than Q&A, as I don't think there's a clear answer, but lots which could be said.Firstly, if line [1] is taking a second to execute, that's how long it takes to do the DNS lookup on the hostname and establish the TCP connection. Seems...

TcpClient

sockets

Is there some class for .netcore for modbus TCPIP

7 Jul 2016 by Member 10710536

I would like to write a programm to communicate with a modbus TCP/IP slave.I found some library's but they are all for .net.I would like to use windows UWP. So i believe i have to have a library for the .NETcore.Can someone help me with thisWhat I have tried:I already tried...

UWP

TcpClient

Network programming - applications communication

28 Jun 2016 by Umut Comlekcioglu

I'm developing new software and I need to be communicate those apps amongst themselves like TeamViewer and Skype. For this challenge, I'm read too many article and write code but I cannot do that. I must use TCP, it cannot be UDP. Data safety is very important for my...

Error while receiving a live video stream on the client via TCP-ip from raspberry pi to windows client

19 May 2016 by violence666

i have made a code in which i receive the live stream on my client from my Raspberry pion my Pi (server) i have used a netcat command pi@raspberrypi ~ $ raspivid -t 0 -o - | nc -l 5001 on the receiver, i store the received data in a buffer, and then that buffer i pass it to my decoder...

Wcf nettcp binding with transport security mode not working.

18 May 2016 by sanyam9999

I have a simple WCF service with GetData() method. I am using netTcp binding for the same. My service app.config is like this: ...

Tcp/IP client and server application

8 May 2016 by Garth J Lancaster

I hate the way you havnt commented your code, and you've jumbled up your input and output scanners & streams etc of your code for your client and server - makes it real hard to follow !Are you in effect asking about this code p.println("test.txt"); p.flush(); ...

Tcp/IP client and server application

8 May 2016 by Ziyad Alotaibi

Can someone help me with this question please ?Write TCP/IP client and server programs as follows:The client should:send the name of a file to the server, read the contents of the file back from the server, save the contents to a file.The server should:accept a connection...

Object reference not set to the instance of object in network stream object.

8 Dec 2015 by Member 11543226

I have form 2 class to handle connected clients, and i have datagridview in that i added one button column and now i have to do is what , send data to connected client without clients request, the data which need to send to client is in another method other than dgv event. public class...

Object reference not set to the instance of object in network stream object.

8 Dec 2015 by Sergey Alexandrovich Kryukov

You did not show where the exception with the message "Object reference not set to an instance of an object" is thrown. Not to worry. This is one of the very easiest cases to detect and fix. It simply means that some member/variable of some reference type is dereferences by using and of its...

C# Telnet to Cisco routers

25 Oct 2015 by George Jonsson

Try using NetworkStream[^] instead of StreamReader and StreamWriterHave a look at this example.TcpClient.GetStream Method[^]

Cisco

TcpClient

C# Telnet to Cisco routers

25 Oct 2015 by MrXccv

I am trying to connect to a Cisco router via telnet but i don't need to log in only to get the banner (banner = information the router presents before you get into username & password input))Banner Example:*Welcome To 101044555@xxxxxxx *----------------------------- **ADSL Line :...

Cisco

TcpClient

Program C++, How make chat?

28 Sep 2015 by CPallini

Did't you google for[^], did you?

C++/CLI

TcpClient

sockets

TCP Chat server on online server

22 Aug 2015 by F-ES Sitecore

You'll need to hire a shared server with a fixed IP address (a lot of web hosts will offer these). You need a domain registered such that it points to your server (say chat.yourdomain.com), your app needs to run on this machine listening to its given port, and your chat client needs to connect...

TCP Chat server on online server

22 Aug 2015 by blitzkrieg89

I have created a chat application using TcpClient and TcpListener in Visual Studio.All works fine when I run the server on my computer.I want to host the server application online on the Internet, like GoDaddy.com, so that it can be accessed from anywhere.Is this possible? If not, any...

Communication between .NET and Android devices?

1 Aug 2015 by Richard MacCutchan

Lots of samples to be found by https://www.google.com/search?q=android%20sockets[^].

Communication between .NET and Android devices?

1 Aug 2015 by Umut Comlekcioglu

Hi everyone,TcpListener list = new TcpListener(new IPEndPoint(IPAddress.Parse("192.168.1.36"), 11000));list.Start(); list.BeginAcceptTcpClient(AcceptCallback, null);I'm write that code into my Server and I can connect Server with Windows Client. s = new Socket("192.168.1.36",...