Hello there,

First of all I would like to congratulate the Crytek crew for delivering Crysis 2. Now on to business, I've purchased the limited edition which I received this afternoon. Now, I'm trying to access the multiplayer mode but the menu will just say "Invalid serial code" even though I've input the correct code over and over again. What gives Crytek? please address this issue ASAP as it could affect the overall reputation of your company to us PC gamers. I've been waiting for months now to play this game. I felt bad for you guys when the leaked version came out so I decided to buy your game legally. Please don't abandon the PC community. Address this issue as soon as you can. Many Thanks!

It appears I'm not the only one with this problem as my friends too are having the same issue.

I'm having the same issue.... ugh, please post a soultion, would love to get online.

They had the same problem with the demo. The authentication servers are being slammed. I'm sure they are scrambling to fix it, that's why they're not on here replying to all of the repeat posts on the same subject...