Real Time Game Center game disconnects (possibly because of network timeout)?

Looks like you have a clear hypothesis here, i.e. That Game Center connections are closed after 30 seconds idle time. I would not be surprised if this is the case.

Other games almost certainly will send data within such an interval, and you may be triggering a timeout condition. To test this hypothesis and fix the problem at the same time, I would send a short blind text every five or ten seconds.

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