It keeps telling me that my key is already in use.. I just recieved this game in package today. I dont know how someone else could have my key but I want to play online. PLEASE HELP!!
Thanks,
Corey LaRocca

ME TOO!!! OMG!

Really? Thats messed up... What should we do?

You new here? This has been going on all day. In case you missed it let me give you the run down. Crytek dumped its pc fan base and ported us a console game.

Naw just installed it.. What does that mean?

I have the same problem. But I've been able to connect to empty servers.. I bought it on Steam.

This is BS

i agree man this is total bs pls fix this bug

Bought the game on steam, having the same issue.

this is a huge issue

Yeah I'm having the same issue, just got it off of steam. Kind of lame to buy the game for 60 bucks and not be able to play it online.

bought a hard copy via amazon.
i installed it, when it didnt work, i talked to the support via chat. we even tried an alternative product key, nothing worked.
I reinstalled it, and it still doesn't work.

so, for the support team:
1) the key is not being saved (have to re-enter it every time i go into the multiplayer modus.
2) there is a problem with recognizing the keys.

For more in-depth information, please contact me. Not ALL information should go into the forum

Bought it on Steam as well.

Same issue for me.

I got this and the key not being able to be saved fixed by going to C:\Users\"your user name"\Saved Games right click on crysis2 folder and make sure the read only is not on

Create a new profile, do not use the default one. That fixes it.

I did what raisingx said to do with the save folder and now I can play the multiplayer,I'm sure it won't work for everyone but its worth a try. Thanks Raisingx

Creating a new profile worked for me.

Create a new profile, do not use the default one. That fixes it.

i had same problem and took a few minute to find the anwser. im bumping with it for everyone else see u ingame!

I just tried both
a) setting the folder to R&W rights as described by "Raisingx"
b) created a new profile like "GRIMMSTEDE" said
none of those have worked for me =/

You can add me to the list.

Bought mine on Steam, cannot play "Serial already in use"

My copy is from Steam as well and I have the same problem. I have to re-enter my key each time I try to enter the multiplayer menu and when I try to join servers it will say my serial key is already in use or something.

Hi Guys,

I was having the same problem.

CD key not recognized, nor would it save it at the login screen.

I had bought the Limited Edition from Best Buy.

I didn't try anything else. All I did was then go to gamesas.com and apply the bonus content authorization code, then my game worked fine.

If you are having problems and have bought the Limited Edition, try applying your bonus content key. That worked for me.

Before bonus content applied - no work.

After bonus content applied - works great.

I wonder if the keys are locked because they are modded to support extra content?

Hi Guys,

I was having the same problem.

CD key not recognized, nor would it save it at the login screen.

I had bought the Limited Edition from Best Buy.

I didn't try anything else. All I did was then go to gamesas.com and apply the bonus content authorization code, then my game worked fine.

If you are having problems and have bought the Limited Edition, try applying your bonus content key. That worked for me.

Before bonus content applied - no work.

After bonus content applied - works great.

I wonder if the keys are locked because they are modded to support extra content?

@techboyjk, I also have the limited edition, the pre-ordered one with the bonus skin for the scar and all. Every time I log in to the multiplayer it tells me that it has been applied.
So I guess that didn't quite work for me either, lol

Bought it on steam. Tried all of the above methods. Still getting the error.

Could we please get a sticky on this Guys?

Hrmm me and my buddy were having the same issue and this fix both worked for us. Before you log in click the modify cd key button and enter your cd key in all lower case with no dashes. After that connect to a NON official crytek server (usually the empty ones) once you connect in the lobby exit your game back to desktop. Re launch crysis 2 click the modify button before login re-enter cd key lower case with no dashes launch multi and attempt to connect to official servers. May not work for all but this worked for my buddy and I soooo best of luck