I have a weird development this morning.
My phone, on BT contract, says no BT internet access, sign into EE, which I did successfully using my BT credentials.
My BT router, however, is ok, showing blue, and my laptop is connected to BT wifi.
I have moved your post to this new thread, so you can get personal help from the community or moderators, so please watch this thread for updates, however if you are now with EE for your services, you need to post on the EE forum.
So you mean your phone was trying to connect to (public) BT WiFi, and your phone was prompting you to log into EE WiFi?
Nothing to worry about there: BT WiFi has been replaced by EE WiFi. Everything but the name is the same.
As to why you were getting this at home instead of your normal network? Sometimes for no apparent reason my phone seems to prefer connecting to EE WiFi over my home network. Only very occasionally and I have no idea why.
Thank you Colin. My phone has since reconnected to the default BT, while it now says no internet access for EE. So long as I have wifi I'm not unuly worried.
This isn't haphazard.
If you've logged into another (open to general public) hotspot by BT and EE before, your phone will remember those automatically, unless you choose to 'forget' them.
If your home's (your own router's) WiFi signal isn't strong or available at the time (for example due to radar detection), then your phone will automatically suggest logging into or, in fact, log into the nearest network available that it is familiar with (= which you've logged into before).
So, even if you're with BT as default, since BT and EE are now one company, you can use any such access point. The downside is that these are open networks and even though you have to enter your BT/ee username/password to access them, they're not wpa2 encrypted like your own, home network (hopefully anyway).
Thank you Edinburgh-wg. I very much hope it will work that way, because prior to now my phone never automatically connected to BT Wifi when I've been out and about, I've always had to find it in the network list and connect manually.
Update: My phone 'did' connect automatically to BT Wifi when I was out and about, but then after BT joined EE it wouldn't connect to EE Wifi unless I signed in. Staff in a BT / EE shop failed to fix the problem, so now I've changed provider, I'm no longer a BT phone customer. I'm with a single phone network only, not an amalgamation of two that leaves me confused as to which company I'm dealing with, e.g. BT email me to say my broadband bill is ready, while post comes from EE.