we did some research and several tests,
first of all, now when the time on the "SCG System Time" is synchronized and both System and UTC Time are correct i still get heartbeat lost that occur two hours from the current time...
i don't think it's the controller, but where can it coming from?!
the other thing with the the heartbeat problem we have, we tried ping the controller using a cable connected computer instead of the Zoneflex R300 and ping was stable for 2000 pings, from the router we pinged 15000 with no errors..
but when the computer was connected to the Zoneflex via wifi we have had some request time out...
the only thing i can think about, is to have a greater period of time before timing out and flag heartbeat lost.
do you have any other idea?
thanks in advance,