iPhone GameKit: Communication with Sandbox - GKErrorDomain Code 3

Anyone has any experience with GameKit GKErrorDomain Code 3? I receive the error message when I try to upload a score to a leaderboard in the Sandbox. The iOS reference library just says that Indicates that an error occurred when communicating with Game Centre The Here is the full error message:

Error Domain=GKErrorDomain Code=3 "The requested operation could not be completed due to an error communicating with the server." UserInfo=0x75e4eb0 {NSUnderlyingError=0x7531e00 "The operation couldn’t be completed. status = 5053", NSLocalizedDescription=The requested operation could not be completed due to an error communicating with the server

The environment:

• The request is being made from the 4.1 Simulator
• GameKit has authenticated the local player who has logged into the Sandbox
• The leaderboard with the name "Standard" has been created on iTunes connect
• I can browse the web in the simulator

Here is the code I use to upload the score

    开发者_高级运维GKScore *scoreReporter = [[[GKScore alloc] initWithCategory:@"Standard"] autorelease];
    scoreReporter.value = 10;
    [scoreReporter reportScoreWithCompletionHandler:^(NSError *error) 
     { 
    if (error != nil) 
         {
             // handle the reporting error
             NSLog(@"An error occured reporting the score");
         }
         else 
         {
             NSLog(@"The score was reported successfully");
         }
     }];

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One reason (which is the reason that was affecting me) for GKDomainError Code 3 is if the Leaderboard Category Id specified in the initWithCategory message when initializing GKScore is incorrectly specified.

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It's easier to track down if you print out the error. Etc:

NSLog(@"An error occured reporting the score: %@", error);