Hi all, i would like to ask some help on a certain phones on our office where it is randomly rebooting. Almost 2 months ago we replace our 3cx server V8 to new 3cx server V11. So far everything works fine except for few phones that were randomly rebooting. Here is one of the scenario: -> 2 x Cisco SPA502G 7.5.3, configured exactly the same, suppose to resync at 2:00 am, and both are connected on the same network -> 1 of them is randomly rebooting and the other is not -> on the Server Log, i noticed this message on the phone that is rebooting 1/15/2013 11:37:10 AM Information 4101 Extension 1710 is registered, contact: ... 1/15/2013 11:34:16 AM Information 4101 Extension 1710 is unregistered, removed contact:... Is there any reason why this thing is happening? Does it resync? Or there is more? Any help/suggestion would be appreciated, TIA.