Connection error: "Failed to join game (GS)" Ports needed please!! Rome: Total War

[Doubledealer]

I just bought the steam version of the game (Rome: Total War) for a dollar. I've been trying to play online but I can't join any matches. Initially, I couldn't play at all online, not even logging in. I got this message saying "Failed to login". After extensive googling on this problem I found I needed to enable the following ports through my firewall, so I did. (I just enabled tcp/udp for all of them)
26220
6667
3783
27900
28900
29900
29901
13139
6515
6500
27750
29920
28910
29910

So now with these ports enabled through my firewall, I can actually log in. However, when I try to join any of the matches being hosted, I get another error saying "Failed to join game (GS)". So then I by this point I was getting pretty frustrated, so I just closed my whole firewall (turned off, no security whatsoever) and tried playing the game again. IT WORKED, the game actually worked, I could log in, join a match, the lobby/chat, play the game, everything.

So I KNOW the problem is within my firewall.

Someone please help me, I really wanna play but have my firewall enabled at the same time. If someone could just give me the ports I could try them out to see if they work.

Any help is appreciated, thank you.

[Squid]

Moved to RTW Technical Help Forum.

[Doubledealer]

soo...what? Where's the thread gone?

[Doubledealer]

Moved to RTW Technical Help Forum.

no link or anything? Great thanks for the help. You could at least tell me how to get to the new thread. Please reply.

[Doubledealer]

Found it. What a long way to get here...

[Doubledealer]

Anyone?