GC disconnection

Hello,

I've got several GC modules on several bOS systems. 

On all of these systems (Grinder, Jigsaw KNX, Jigsaw Z-Wave) the GC gets sometimes disconnected, at random. Sometimes it reconnects in a matter of seconds ; sometimes it doesn't reconnect and the only solution is to disable and then re-enable the device, or to restart bOS. 

1st question : is there any ways to fix that ? 

2nd question : I can make a test before using GC to check if it is connected or not. But then what can I do ? It seems that it is not possible by program to disable a device, or to restart bOS. Is that correct ? Any other solutions ? 

Thanks,

François