company of heroes, NAT negotiation failure.

[campbell79]

NAT negotiation failure. PLEASE HELP!!!
I purchased COH gold edition today with the primary purpose of playing online. But im rather disapointed to have ran into technical issues, as usual with online gaming.

I spent a day patching and installing. eventually i get to the multiplayer screen and go to connect to a game. i get the following error message:

"A NAT NEGOTIATION FAILURE OCCURRED UNABLE TO CONNECT TO (players name)"

I had a ping of 94 with this game.

After maybe 6 or 7 attempts i find a game i can join, a 3v3 game.
there are 2 players and myself waiting for other players to enter. Several messages pop up saying "(players name) cannot connect to campbell79".

I assume the players i was waiting with can connect to me, but the other players who are trying to enter can't. this means i can only connect to <25% of players.

I disabled windows firewall and un-installed my AVG anti-virus.
I opened up the relevant ports, 6100, 9100, 30260, 6112, 30275. (probably more than required).
I have a Zyxel P-660hw-t1 wireless router.

i tried a direct connection using a cable from my router with same error.

i also tried placing my local IP in the DMZ of my router, again no success.

i've attached the relevant info, Warnings, hijackthis, ISP fix, and Dxdiag files. I also carried out the recommended Ping and tracert tests. ping timed out and tracert showed lists of Ip addresses.


Any help would be greatly appreciated. thanks...

[campbell79]

i also ran winstun, with the following results.

Could not reach the stun server - check server name is correct
Preserves port number
Does not supports hairpin of media
Public IP address: 0.0.0.0