NSURLErrorDomain error -1012

So have you run across this one when trying to issue some url requests? What it means is there was an authentication error - NSURLErrorUserCancelledAuthentication. Okay, so what does that mean? You likely are trying to issue a synchronous http request and not passing proper authentication, or you've messed up your auth in some other manner. It's a lot easier to handle authentication when using asynchronous calls and responding to the auth challenge:

-(void)connection:(NSURLConnection *)connection didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge

{

    if ([challenge previousFailureCount] == 0) {

        NSURLCredential *newCredential;

        newCredential=[NSURLCredential credentialWithUser:@"username"

                                                 password:@"password"

                                              persistence:NSURLCredentialPersistenceNone];

        [[challenge sender] useCredential:newCredential

               forAuthenticationChallenge:challenge];

    } else {

        [[challenge sender] cancelAuthenticationChallenge:challenge];

    }

}