Browsing this morning I have problems accessing some websites. I get this screen below. I don't have parental controls switched on and never have. I also get "could not establish secure connection" messages when visited Facebook and apple support discussions websites for example. I've restarted the HH4, cleared website data and history. Any ideas why this has started.
( using IOS 10 and Safari on IPad)
Update - if I switch from the BtHub... wifi to BT WIFI X I don't have the problems mentioned above and can access mac-forums, Facebook and apple support. Also I don't have Smart Setup enabled on the hub and the 2.4 and 5Ghz have separate SSIDs.
Appears to have been gremlins. I've not changed anything since my first post just left the hub on. Lo and behold the problem appears to have disappeared. I guess moral is if a problem occurs leave it a few hours before doing anything.