can't set up a community profile
@willowface Are you talking about thesims3.com, or forums.thesims.com? For either one, if you're already logged into AHQ with the same credentials as an existing account, you should be able to login without even entering your email and password. (I just tried this—I'm logged in here, I went to the store site and clicked login, and it happened automatically.) You would need to pick a screenname on either of the two sites if you'd never used them before, even if you chose to use the same email and password that are associated with your Origin account.
If the auto login doesn't work, or if you don't already have an account on the specific site you can't access, then try clearing your browser cache, or using a different browser. Firefox tends to work better than Safari or Chrome.
The other possibility is that you're logged in with one account on AHQ (or Origin, or some other EA site) and trying to use a different account to login to the site that isn't working. This has become a problem recently for some players who have multiple accounts. For example, they're logged into the official forums with one account, and then they can't get into their other account on the store site, because all the sites share info. The result is that they keep getting kicked back to the registration page. In this case, sign out, clear your browser caches and all your active sign-ins, and try again. Or use a private browsing window, one where you haven't already logged into any EA site.
