My BT Smart Hub2 has been working fine for a few years but recently strange things are happening with the wifi connection. A couple of times a day, some devices (phone, laptop) lose wifi connection but other devices continue ok (tv). Turning the router off then on resolves the issue but a few hours later it happens again. Any ideas please.
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Try a factory reset of the hub by pressing the recessed button with a pin for about 20 seconds until the lights flash.
Try a factory reset of the home hub,
Its possible that the home hub has run out of internal connections, a very common issue if you have devices that are using random MAC addresses. You can probably see lots of "unknown device" entries in the home hub connections list.
A factory reset clears this list, but eventually it will happen again unless you avoid using MAC randomisation (Private Addressing ) on your home wireless connection.
This is mainly a problem with Apple devices and later Android versions.