Before I start, thought I'd post that.
== C:\Program Files (x86)\Bohemia Interactive\ArmA 2\expansion\beta\arma2oaserver.exe
== expansion\beta\arma2oaserver.exe -winxp -nosplash -skipintro "-cfg=[REMOVED]" "-config=[REMOVED]" "-bepath=[REMOVED]" "-profiles=[REMOVED]" "-mod=expansion\beta;expansion\beta\expansion;@CBA_A2;@CBA_OA;@CBA;@ACE;@ACEX;@ACEX_RU;@ACEX_SM;servermods\@FOG;@ACEX_USNavy;@JayArma2Lib_new;@ACRE"
Exe timestamp: 2012/05/30 20:31:22
Current time: 2012/05/30 20:57:28
Updating base class ->DefaultDie, by ca\air\config.bin/CfgMovesMaleSdr/States/KIA_AH1Z_Pilot/
Updating base class ->ACE_CharliePack, by x\eod\addons\eod\config.cpp/cfgWeapons/ACE_PRC119/
Updating base class Man->CAManBase, by x\st\addons\st_littlebird_enhance\config.cpp/CfgVehicles/CAManBase/
Updating base class AH6_Base_EP1->MH6J_EP1, by x\st\addons\st_littlebird_enhance\config.cpp/CfgVehicles/MH6J_EP1/
Updating base class MH6J_EP1->AH6_Base_EP1, by x\ace\addons\c_veh_transport\config.bin/CfgVehicles/MH6J_EP1/
Updating base class CAManBase->Man, by x\ace\addons\sys_ruck\config.bin/CfgVehicles/CAManBase/
Updating base class ->ACE_Rucksack_MOLLE_Green, by x\ace\addons\sys_ruck\config.bin/CfgWeapons/ACE_ANPRC77/
Updating base class ->ACE_PRC119, by x\ace\addons\sys_ruck\config.bin/CfgWeapons/ACE_PRC119_MAR/
Updating base class ->ACE_PRC119, by x\ace\addons\sys_ruck\config.bin/CfgWeapons/ACE_PRC119_ACU/
Updating base class ->ACE_rucksack, by x\ace\addons\sys_ruck\config.bin/CfgWeapons/ACE_P159_RD90/
Updating base class ->ACE_P159_RD90, by x\ace\addons\sys_ruck\config.bin/CfgWeapons/ACE_P159_RD54/
Updating base class ->ACE_P159_RD90, by x\ace\addons\sys_ruck\config.bin/CfgWeapons/ACE_P159_RD99/
2012/05/30, 20:57:57 NAT Negotiation failed - unable to communicate with the server
2012/05/30, 20:58:07 NAT Negotiation failed - unable to communicate with the server
2012/05/30, 20:58:22 NAT Negotiation failed - unable to communicate with the server
Last lines, NAT Negotiation Failed. Only started happening about 30 minutes ago, nothing changed or was changed router side or server side (I'm hosting it myself)
This is the second server it's happened to and the group I'm hosting for actually switched to me for hosting, however now I'm having the same issue.
Those NAT errors only come when players try to join also.
Disabled UPnP but my webserver needs it so I re-enabled,
Forwarded ports, I'm in a DMZ Zone, Router firewall is on.
Done netsh winsock reset and restarted, nothing.
IP Address is Static all the time.
What else can I try?
DNS Servers were on Manual in my PC Settings, changed to automatic.
Player connected without modifications, will re-test with modifications and see if it works.
Works with full mods on client. Either it was caused by the DNS, or the NAT seems to have just re-opened itself perfectly.