Hi @bentnose, thanks for your post although I'm sorry to hear of your concerns raised.
I've ran some checks the network for you, and I cannot identify any faults - either area ones or issues with power, upstream or downstream levels being out of spec that may be causing this.
It looks like your Hub has been on for a long time though, so I'd advise trying a full factory reset as advised here.
Please be aware though, if your Hub is in Modem Mode this may revert it back to Router Mode, but also it will reset your SSID name and password too back to default, so please be prepared for this and let us know if this improves things.
Many thanks
Tom_W