TheGhost

I was getting steam must be running to play this game but i notice that i cant access to http://iw4.prod.fourdeltaone.net/ always getting 403 Forbidden it is my isp i think but i tried with vpn to run the game via tor and the game work without any errors but is that allowed to use tor or vpn to play ? also can you guys please change some settings in authentication server? that might fix this problem also how to switch to full screen ? my game running in windows mod.

Re-install FDO! Already done that didn't work as lmaobox said it is master server issue, what i should do ?! :cry:

Same problem here i tried every thing but didn't work always getting steam must be running to play this game, If this odd why it only appear to us only i mean it can appear to others too.

Hello guys i am old player from alteriw and i would like to get some help for this problem, Every time i open iw4m i get fatal error steam must be running to play this game i downloaded the updater today but same problem, should i run steam to play it? i looked for solution on forum but couldn't find any so i will be very happy if some one helped me to fix this problem and thanks NTA for bringing mw2 back the best game of all call of duty series.