I've updated my Crysis game to the latest version, and I'm still having the same issues.

I can't play the singleplayer, as soon as I create a new game, I get to see the opening movie, and after that, the game crashes and gives me this error: [PlayerProfiles] CGameContext::StartGame: No users logged in .
I click on ok, and then it says Crysis 2 has stopped working.

Also, I can't play the multiplayer. I'll explain you from beginning to end what I did, from installation till the point where it gives me the multiplayer error:

I installed the game, started it up, and activated my license, after that, started updating, after that it asked me for permission to install the update, I said yes.
After that it installs the update, then I start up the game again and I get to see all the screens of Crytek, Nvidea, etc.
As soon as it opens up, it asks me for a login, I used my old Crysis 2 demo account to login, and I got to the selection screen, I first went to options, to set my resolution, after that I went straight into multiplayer, it asked me for a serial, I entered my serial, and then it gave me a error message right after I clicked on ok, it said:
'Cannot connect to multiplayer, please check your network connection'. I did that, and I had a succesful connection to the internet. I tried to connect again, but it failed again.
I never had any problems connecting to any other game, just Crysis 2 is being a problem for me.

I have a broadband connection, and I'm connected by cable
My system specs are:
Operating system: Win 7
RAM Memory: 4GB
Video Card: ATI HD 5850
Processor: Intel i7 2.93 GHZ

Let me know if you need to know more.

BUMP, this is very annoying.

Bump again.