Currently have SH2 and today noticed that no devices are using 5Ghz band at all - we have ipads, iphones, laptops, PCs in the house and the SH2 has put all on 2.4 and not 5 for some reason. Now we had a BT/OpenReach engineer a while ago and he said to keep the hub on SMART/auto and it will work best. But why is it putting everything on 2.4 and not 5? I have tried to get my desktop PC to connect to 5Ghz but it won't. I have tried turning off the 2.4ghz radio on my wi-fi dongle I use with my PC and it refuses to connect when I do that. Also in the Hub Manager screen it lists every device as "dual band: no". WTF?! Is the only way to solve this to ignore what the engineer said and take all the hib settings off SMART/auto and try to set up a separate 2.4 and 5ghz setup?
The hub doesn't decide which band to use, your devices do.
5Ghz is faster but has a much shorter range.
If you wish for all your devices to use 5Ghz exclusively, simply turn off the 2.4Ghz WiFi in the hub manager.
Forget using Smart wireless, try setting the channels manually. You can use a WiFi analyser to see which channels are congested.
Are you sure the hub is actually transmitting a 5Ghz signal?
Try a factory reset of the hub.
Use a WiFi analyser app on your phone