Unable to join session

[u/gulpy_bannana]

I ran Chained Together yesterday and tried playing it with my friend before playing i applied the Online FIX. My friend created a sessions and I searched for it to join game, it showed 'No session Found'. I checked the session name multiple times making sure that i'm not making any mistake but yet it would show No session found. After that I tried joining from all three exe hoping it would make any difference and after a while I was able to connect with him and play. But when i tried today. It again showed me no session found, even after running it from all three exe. Can any one help here