Your partly right in that bitwarden was interfering but while I can get sky WiFi to work with private dns it still cuts off my mobile network which is 3.
Now that’s not completely as bad as it sounds because I use WiFi calling a lot at home .
Ive seen the same issue in the past with virgin which even cut of my home pcs if I tried to use a dns that wasnt theirs.
Your partly right in that bitwarden was interfering but while I can get sky WiFi to work with private dns it still cuts off my mobile network which is 3.
Now that’s not completely as bad as it sounds because I use WiFi calling a lot at home .
Ive seen the same issue in the past with virgin which even cut of my home pcs if I tried to use a dns that wasnt theirs.
I found this fix for Virgin Media, might be worth contacting 3 (or their support forums) to see if they have a similar fix