XZ Premium / Oreo / No connection to internet

[ogninjadon]

App has never been installed on this device. Was working perfectly on One Plus 3 via same WiFi connection. Desktop PC works fine, tried 4G and WiFi with exactly the same results.

Allows me to log in, but says no internet connection. Occasionally it will load up the odd picture but then goes back to no internet.

I've uninstalled the app, cleared cache, rebooted phone, nothing working.

Any advice?