I'm guessing by the lack of reply that you guys have no idea what the problem is?

After some digging, I found it.... Steam likes to hide useful things

Log from where? I don't see one

I've been working with a friend to resolve this issue ourselves with no luck. If either of us attempts to connect to each other with anything built on the map, it basically locks up the host and takes multiple minutes before an action will go through (including disconnecting). We're forced to use ...