connection to game server lost.

[kregoron]

Ive was having this issue all of last night, mainly when trying to join a game..
usually took between 10-20 mins just to join a game.

and i know a few others have had the issue. Looks like mine is solved now (keeping fingers crossed)

i just forwarded the following ports on my router to my computer

Port: 80 TCP
 Port: 18121 TCP
 Port: 18126 TCP
 Port: 18126 UDP
 Port: 13505 TCP

which for now seemed to have solved it..
Another solution, tho a bit more drastic, and something id advise not to do, is add the computer to the DMZ list on your route

[albert]

Or uPnp will do it I'd expect, what router make/ model are you using?

[Scrap that!! uPnp seems to be causing the problem!!]

See: http://forum.ea.com/eaforum/posts/list/450/374945.page

[Tutonic]

DMZ = bad, not to be done unless it's a last resort and never permanently.

[kregoron]

DMZ = bad, not to be done unless it's a last resort and never permanently.

indeed