My smart hub randomly reboots, it can (I think) go for several days with no problem, & then it will re boot, sometimes once or twice, sometimes over & over again for up to 45 mins, I can reconnect for a few moments as it completes but (of course) am disconnected as it reboots.
check your landline for noise dial 17070 option 2 should be silent and best with corded phone
if no noise then try factory reset of hub by pressing recessed button on back and holding 20/30 secs until light flash when reboots remember to turn off smart setup
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