Connection Issues / Waiting for player to accept

[NeedMoDro]

Hey guys, we are aware some people are having issues, we apologize and are working hard to address them.

Please check you are not blocking any ports or connections required for Steam Matchmaking and NAT traversal. In most cases you should not have to do this manually but please ensure the ports are open and no software firewall is blocking connections. Thanks!

The link below contains info on the required ports. Your connectability can be tested on various websites, I cannot post links to any at this time, sorry.
https://support.steampowered.com/kb_article.php?ref=8571-GLVN-8711

[Ad Hominem]

I had this problem playing with a friend today. The strange thing to me was that we had played the day before without issue. We were trying to pick up our progress on track 21 which is when this problem arose. We are both positive nothing has changed on our ends as far as networking, ports getting blocked, firewalls or anything of the sort.

[OmegaCrow]

Please fix this issue! I'm trying to record for my channel! :]

[Mouser]

Sometimes it happens, sometimes it does not, it's not consistent it seems. I would close the game and start it again to see if that fixes it as a work around.