BAEM

Havent needed ur last solution, the one before was already the point! :) Thanks to Dwarden, *Placebo* and MJK-Ranger for helping !!! All works just fine now. What i've did? Deleted port forwarding 2300-2500 and created just the needed ones. Thanks :))))

This means i need the following ports to be forwarded at: 2302 2303 2305 But, I already opened the port range 2300 - 2500. Yes, to my IP address. And in my router (Netgear RP614v2) i can't differentiate between outgoing/incoming connections. If I open a port, its open, for both, incoming/outgoing. But thanks for the ports, i'll give em a try by deleting the port range 2300-2500 and creating just 2302, 2303 and 2305.

No solution right now, but i think the better way for u is to check this thread or start your own. Seems like he has the same problem like you, just in another game. http://forum.teamspeak.com/showthread.php?t=56142

Router firewall, yes. The router has many ports open, i dont wanna post em all now. Which ports i should open? ALL other games working just fine. SC2 Beta, Mohaa Beta, CS 1.6, CS:S, WC3, Empire: Total War, Starcraft 1, Blur ... and so on x) If it's a problem with a/the port/s, why could i play ONE time (at least for 3 hours), but after leaving/dropping and trying reconnecting, it won't work again? Edit: I don't use ANY anti-virus tools or software firewalls.

Deinstalled Arma 2 + Arma 2 OA. Re-installed Arma 2. Connecting failed. Is here nobody to help me, btw. with the same problem? I didn't bought the game to play it in single-player...

After searching in google for "arma2 connection failed" i found this site http://community.bistudio.com/wiki/ArmA:_Troubleshooting#Can.27t_connect_on_servers and tried following: But again, can't connect on any MP server. It's really disappointing to me...

http://forums.bistudio.com/showthread.php?t=101587&highlight=connect+servers They're talkin about me. Maybe we should combine these two threads. Interesting. While sleeping i've downloaded ACE + Co. Started Arma 2 (No expansion, via. Six Updater) -> Played about 4 1/2 hours. After this a bluescreen has dropped me out of the game. If i'm trying to reconnect to the last server i've played, i can't. Now i can't connect to any server. Same problem: Connection failed. :/

Only green servers, yes :-) Ping is about ~60ms, just like in each other online game. edit: ill be back in 1 1/2 hours, after Netherland vs. Urugay :))

Restarted Steam client, don't worked Restarted OS, don't worked Restarted router, don't worked This means i should ask in Steam forums for help? Thx anyways so far.

Finisehd downloading Arma2 + OA today, first started OA and played about 3 hours without any problems. After this i tried connecting to another server, there appeared a problem -> "Connection failed". After some people told me i have to read this instruction http://forums.bistudio.com/showthread.php?t=101214 to get it work, ive done that. Now i can't connect on ANY server. Error appears 5-10 seconds after clicking on "Join". My OS is Windows 7 64bit, if this help. One thing is different to the instruction: My one is HKEY_LOCAL_MACHINE\Wow6432Node\Bohemia Interactive Studio\ArmA 2 Same for Arma2 OA Thanks for help :)