Always logged out from Chrome

I'm using Ubuntu 16.04 with Chrome 53.0.2785.101, and am experiencing the problem,that whenever I boot my laptop and open up Chrome, I'm logged out. I see a yellow triangle next to my name and have to reenter my password. This happens every time, and I don't know why. I don't delete my cookies etc. after I close chrome, but have to log into every website again (Facebook is pretty annoying because of 2FA).

Things I considered why this could happen:

  • I recently changed my password.
  • I'm using a WiFi connection (Can't use wired atm)

How do I find out what's the problem here and why this is happening? On my desktop pc I don't have the problem.

Update
This is not a duplicate of After rebooting I need to log in each time in Chrome because the accepted answer didn't work. Maybe I should try one of the others in that thread?

Update 2
After the weekend, I had the same problem again. :( Online account is still connected though, but I was still logged out from every site and my Google account.


Solution 1:

I just had this issue after switching from Gnome3 to KDE5 (Ubuntu 18.04). This answer has helped me: https://askubuntu.com/a/401996/432944