Resolved Plesk control panel doesn't work correctly when using mobile connections

[TriJoe]

The issue
I've recently had to switch to a 4G connection and I've been having issues logging in since. Upon logging in, it logs out instantly.

What I have tried

• I've tested this on 3 plesk servers, one is on with a completely different web host, unrelated to the first two. The same issue happens on all 3.
• I've tested this on 2 different 4G routers, and a 5G router, and 2 different sim cards. The issue happens on all devices / simcards.
• I've tested from another PC on a normal fibre internet connection, the issue doesn't occur to any of the 3 servers.
• I've tested from a laptop on the same mobile connections, and the issue still occurs.
• I've tested on Chrome, Edge, Firefox, with both normal and private browsing modes. Issue happens every time.

My observations

• The IP address on the mobile connections changes frequently, but not between logging in and being logged out again.
• The issue did go away briefly when I bought a 5G router, but the problem came back days later.
• While getting HAR logs from Chrome, I logged in (and automatically back out) several times, but then on the last attempt, I stayed logged in, long enough to click some links before being logged out again.
• I don't have issues with any other control panels for other platforms.

 

[TriJoe]

My bad, I didn't think this was the issue as the IP isn't changing that frequently, but it's not logged out since.

Home > Tools & Settings > Sessions Management
Allow IP address changes during a single session: Enable