Ok looks like there's s lot of activity here talking about this! I'm sorry I couldn't check before, but getting logged in here was a nightmare so I submitted a post as soon as I was able. However good news for PS4 users, in another thread someone posted internet settings that worked for me and many others so I'll repeat it below

Quote Originally Posted by Jozu View Post
I managed to get out of Quarrymill!
This only works on PS4 though!

Set up internet connection like this:

IP Address (set to automatic)
-DHCP host name (set to Do Not Specify)
-DNS Settings (set to Manual)
-Primary: 8.8.8.8
-Secondary: 8.8.4.4
-MTU Settings 1470
-Proxy (set to Do Not Use)

I haven't done any dungeons yet but I could escape Quarryhell!