Hello,
I have been trying to communicate between two VIs using UDP and then TCP/IP.
- For the TCP I have used the example VIs 'Multiple Connections - Server/Client'
- When the VIs are running on the same machine it works fine.
- When using TCP/IP I have replaced 'localhost' with the ip address of machine found using the 'ip to string' VIs and it still works fine.
-When I run the VIs on two different machines that are both connected to the same network it does not work. The UDP client of course shows no error and the TCP/IP client vi shows Error 63 - The network connection was refused by the server. The TCP/IP server vi runs okay.
-I know the ports are correct from my tests on the same machine.
-I believe it must be a firewall problem on the PC. I believe it is not a network issue as I've taken both laptops home and tried to do the above with my home network but it still didn't work.
-Our work PCs run Symantec Endpoint Protection and I believe I must need to add some exceptions to this program. I would need to get our IT department to do this as it is locked-down.
-The problem is that I don't fully understand what I need to ask IT to do. They won't be keen to do it anyway but I certainly need to approach them with clear information on what I need if I am to stand any chance. Can anybody please advise?
Thank you for any help you can offer,
Best regards,
Martin
