TCP error 56

[AHK]

Hi dave,

Send the screen shot of the loop where the error occurs of if possible the code itself. 

[tbd]

Hi Dave,

      In case it helps, there's a free diagnostic tool called WireShark (formerly Ethereal) that can be useful in situations like this.  It may gave you a better "window" to where communications are breaking-down.

Cheers!

[dave6k]

Thanks for the tip. I used WireShark to take logs on both PCs when attempting a connection. I have attached the logs.

The arrangement that does not work is when the laptop is the server and the desktop is the client. It works fine when the laptop is the client and the desktop is the server.

[dave6k]

I traced this problem to a network security program that was running in the background on my laptop. Once it was disabled, the communication worked. However, there is a delay of about 3 seconds before the data is received at the client end (desktop), which was not the case when the laptop was acting as the client.