Try a factory reset of the homehub by pressing a pin into the recess button on the rear for about 20 seconds. This can often sort out wireless problems.
The wireless channel in use by the router will change as it strives to find the clearest channel. Have you tried going into the router settings and fixing the channel in use ? The best channel to use can be found with "inssider", which is used to scan all available channels, and shows you the ones least congested.......
It may also be that the "lease time" for your connections may need increasing......?
I have the same issue with my homehub 4. My iPhone will stop working randmly eventhough it still says I'm connected (the symbol etc says so) and my laptop/other devices will still work at the same time. 10 minutes later with nothing changed it'll work again. Everything 'Fatboyslick' has said I have the exact problem. This is also driving me insane! I've tried reseting the HomeHub to factory settings and Im still getting this issue.
Give the 2.4GHz and 5GHz different SSids. On your device "forget" any connection to the homehub then remake it to the two new SSids. Restart your device. Your device should then, provided they can use the 5GHz frequency, select the strongest signal.
Link how to change SSid
I've also tried this but still getting the same problem. Any more tips?
Same problem with my HH3, I have infinity 76 MB connection( I don't get 76 jFYI), some of my wireless device randomly don't work. I have tried changing channels, restarting router always work or restaring device , but this is not a permanent solution!! called BT so many times, did not help at all, they only ask me to change channels, cant make them understand that signal strength is not an issue. It would be great if someone can help us here!!
It could be wireless interference/ congestion. Download the free version of inSSider onto a Windows wireless device and run it. You should then be able to see the least congested channel. Once you have this info go into the hub management and change the smart wireless to the least congested channel number.
Link to inSSider
Link to change channels
It might also be worth "forgetting" any wireless connection to the homehub and restarting your device and remaking the connection.
Ive downloaded Inssider and I cant see any problems with the channel. This is getting incredibly frustrating! Will changing the Wireless Interface Type fix the problem? If so, what should I change it to? If not, any more help would be much appreciated! Thanks