Problem creating Network

Hi everyone, I’m trying to create a Network using Velocity as a proxy and as a spongne server to put pixelmon and more modalities with auth server, lobby etc, but I can’t get it to work, it can’t find the servers, I haven’t tried it anymore, any suggestions?

Going to need more info then that.

What forge version are you using?
Have you tried everything that is required from our docs on the matter?