Since the 494 update I have almost all join button grey when trying to join MP. This happens even in the official servers where I used to race without problems... Any help?
When you highlight a server in the MM an HTTP query is set directly to that server which then returns all the details about the server. This is different than how 382 worked. There is something buggy and I consistent about it. So clicking on and off the server over and over seams to eventually give you a join button. Refreshing the list isn't really needed though. Just click back as forth between two servers. Kind of a pain.
I tried to investigate this issue and this is what I found: http://isiforums.net/f/showthread.php/18526-rF2-Build-494-Released?p=251958&viewfull=1#post251958