Help with TCP/IP memory leak

[Walker87]

There is a memory leak in the attached vi that I am unable to find. The purpose of this VI is to read incoming strings from a custom instrument via TCP/IP port 23 (telnet).

The main VI that runs in the attached folder is "CI Instrument Communications.vi". The vi will leak approximatley 2GB of memory over an 8 hour period. Please let me know what you guys can find.

[crossrulz]

Why do you keep opening and closing your ethernet port?  You only need to open it up once.  You are just adding a bunch of overhead to the TCP layer.

Also the constant building of the string could lead to issues.  I don't think that is your issue, but it is something to look into.

[Walker87]

Thanks for the reply. I originally wasn't closing the connection after each call, but I decided to try it to see if not closing it was the cause of the leak. In an example I found the connection was being closed and re-opened each loop iteration. This didnt fix the issue, so i'm still searching. 

I'll look into the string.