Yesterday, out of the blue, one of my Spectrum email accounts asked me to sign in. I tried entering my existing credentials several times, but failed to sign in. I tried to recreate the account, but, it fails each time with "Thunderbird failed to find the settings for your email account". I tried using the account hub and it fails with the same message, with a sub message of "can't find a server". I've been on the phone with Spectrum 5 times in the past 24 hours. They claim that it's a Thunderbird problem since I can access the email in question if I go through their web interface. Can anyone help with this?