Game Center for Mountain Lion not working

Okay, something different worked for me. I closed game center on my Mac. Then I logged into game center on my iPhone. When I opened up game center on my Mac again, I was logged in.

So I guess the other thing to try is that if the Chess method doesn't work. Log in to game Center using an iOS device and accepting the terms and then try logging in again on Game Center on your Mac

Chess option not working for me and have no mobile device to login with. What next?

I too have this problem, I tried to repair disk permissions, but nothing has changed, so I asked the dealer nearest home and told me that the servers are clogged apple, then wait a couple of days

This is the mail I sent.

I too am having this problem. My account worked fine from both another Mountain Lion install as well as my iPhone, so I think this must be a machine-specific issue.

The same problem happens to me. How can I solve it? The chess solution doesn't work and i don't have any other apple product.

Thanks

When I try to log into Game Center it allows me to put in my username and password. When I click Sign In nothing happens. Any ideas?

try the chess method.

Chess method still won't let me log in. Also get a blank green box. Did disk repair and that didn't work either.

Thanks, works for me 🙂

When i want to sing in, appears a message "Could not connect to game center server"

Repairing Disk Permissions did nothing, the chess method opens the Game Center but the Terms&Conditions popup remains blank green, I do not have another device such as an iPad or iPhone, just bought a game from the App Store and I'm not even able to play it due to this, any word on a fix?

Yes I have a real fix , I tried everything suggested from checking the hard drive , to starting chess and nothing worked . Till I signed into gamecenter on my friends ipod touch , accepted the terms and conditions and then , gamecenter on my mac started working right away on my mac.

I suggest going to a local apple store and signing in on one of their ipads , it's the least they owe us.

:-)

Reset PRAM. Worked for me.

http://support.apple.com/kb/HT1379

I have tried resetting the PRAM, and both the Chess trick and attempting to sign in from other devices doesn't work.

For those that are still experiencing the problem, did you do a clean install or an upgrade? I did an upgrade on mine.