ModbusTCPCom1 Unknown error code -34

[scott.clark]

I am receiving this

[Archie]

The -34 is typically a "could not connect" error in the ethernet drivers.

[scott.clark]

That is interesting.  I will test more on some different machines and see if the same connection issues exist.  Maybe it is my development PC.

Thank You!

[scott.clark]

The cause of the -34 was an unreliable USB - Ethernet adapter.  It would drop in and out of connection.  When I switched over to the built in ethernet port on the PC, I never saw the issue again.   Confirmed the adapter issue by using the command prompt and issuing ping command with -t option.

Thanks