[MonoTouch] WebService call on AT&T crashes Verizon and WIFI fine

[Mark Handzlik]

Got a weird issue with an iPad MT app. Web service calls when using AT&T provisioned iPad2 intermittently fails. Can get fail to reproduce over and over again. Same calls when turning on WIFI on device do not fail. Same calls on Verizon provisioned device never fail. Wireshark on server shows that request when failure never gets to the server.
It seems that after we get failure we can get through some recurring sequences of successes for a short time period then get a failure then another string of successes. Failures don't come after a set # of successes but it may be time based.
Monotouch version - mtouch 4.0.3.10366
Any clues or hints are welcome (other than Just use Verizon devices). We have app rolling out to an installation that has ATT standard.

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