Intermittent Broadband
A year on from the original poster and I'm having the same trouble! Intermittent dropouts and/or slowdowns with my 3 year old Superhub 3.0 at unpredictable times throughout the day and only on the 5GHz signal. I thought it might have something to do with a neighbour's internet access but a WiFi scanner suggests this is not the case, although I think they have Smart Optimisation switched on (I don't). It's hard to pin down. The actual signal is usually there but I have no internet access on it or it also disappears and then reappears a few seconds later. I've found that switching WiFi off and then on again on any device connected to that signal usually fixes the problem, until it happens again. I see 'error' and 'critical' notices in the network log, referring, respectively to 'No Ranging Response received' and 'DHCP RENEW WARNINGs'. No faults reported in my area so I'm at a loss. I have another router connected to the hub by ethernet in AP mode, which also sometimes drops out until I reset one of the Powerline sockets connecting the two. Both the superhub and the AP have fixed, separate channels but I've meshed them under one network name for both 2.4 and 5GHz channels. The issue is more annoying than critical. I've had to rejoin Zoom calls on occasion because of it. I'm wondering if I should bypass the superhub's router altogether by putting it in 'Modem Only' mode and using a secondary router connected to it. All and any advice appreciated.