We had a broadband outage for 12 hours a few days ago due some BT PPP network issue. As the day progressed I noticed that more and more of my devices were dropping off the home network. These are local, none cloud devices, like a printer, a DLNA media server, some MQTT sensors, Laptops....
After some debug it turns out that the SmartHub had stopped responding to DHCP requests and also stopped new devices connecting to it's Wi-Fi. I have several other Ethernet connected routers but the Smarthub does provide the DHCP server. I reset the Hub and it came back for 5 minutes and then stopped responding again, you can't even ping it, although the Ethernet switch was still passing traffic the Wi-Fi would not allow connections.
I phoned support to log an issue and had a complete blank, they just couldn't understand the idea that people have a home network and kept saying, "of course the hub won't work during a broadband outage". I gave up, asked to lodge a complaint and moved on.
After a bit more testing I think the hub was so busy trying to raise a PPP connection, the broadband was connected but couldn't authenticate due to the BT service fault, that it was failing to do other tasks? This is pure speculation but I have noticed that the Management interface does get very sluggish when it's connecting to broadband.
Anyway, this is a long way of trying to hopefully raise an issue with a BT support person who understands networks, and also to warn others that this may be an issue. Has anyone else had a similar problem?
