Using BT Smart Hub (HH6) with Plusnet

[#1]

I've been using the HH6 with Plusnet without issue since Nov 2022, but this this morning the internet disconnected and I noticed my login details had reverted to the default BT log in. I repopulated my Plusnet credentials and did a couple of restarts, but with no success. I then did a restore using the backup file I'd created shortly after going live with Plusnet but this didn't work either. I then tried a factory reset followed by another restore - still no joy.

Does anyone (i.e. @Baldrick1) know whether BT have suddenly blocked the hubs being used with Plusnet?

[#2]

Think that you have to disconnect it from the Internet first, remove the connecting cable from the phone socket/ONT.

Enter your details, save them, switch off, connect cable and switch on.

If not, someone with more knowledge will be along, I'm sure.

[#3]

Update: Just called Plusnet and apparently there's a major outage in my area. This thread can be deleted.