"Ubisoft Connect doesn't remember 2SV even on trusted device" problem still persists after several month.

- clear the cache in Ubisoft Connect
DONE
- un-install and re-install Ubisoft Connect (please ensure you follow the steps to back up your save files first)
DONE, multiple times, multiple Windows installations
- run Ubisoft Connect as administrator
Actually, I didn't do this, but Ubisoft Connect is not installed in a system folder so it shouldn't matter
- if you are using a VPN, please disable it
NO VPN

Second, please provide all of the following:

- Have you made your device a trusted device?
SEVERAL TIMES
- Do you use the 'remember me' option? If so, are you still required to log in with your credentials in addition to your 2SV code every time?
YES, YES
- Do you log out of Ubisoft Connect every time?
NO
- Do you exit Ubisoft Connect every time? This would be exiting the launcher from the dashboard if it still shows it is running in the background.
NO, but it keeps telling me it will log me out for being offline for extended time (after I wake my computer from sleep)
- Do you ever have any issues with having to complete 2SV every time that you log in, even when you have your device as marked as trusted?
YES - this is very annoying. Other companies' products REMEMBER my computer for the selected period (1 week, 1 month, etc) and those authentication methods don't ask for the 2SV code until the selected time period isn't over. 

"Ubisoft Connect doesn't remember 2SV even on trusted device" problem still persists after several month.

- clear the cache in Ubisoft Connect
DONE
- un-install and re-install Ubisoft Connect (please ensure you follow the steps to back up your save files first)
DONE, multiple times, multiple Windows installations
- run Ubisoft Connect as administrator
Actually, I didn't do this, but Ubisoft Connect is not installed in a system folder so it shouldn't matter
- if you are using a VPN, please disable it
NO VPN

Second, please provide all of the following:

- Have you made your device a trusted device?
SEVERAL TIMES
- Do you use the 'remember me' option? If so, are you still required to log in with your credentials in addition to your 2SV code every time?
YES, YES
- Do you log out of Ubisoft Connect every time?
NO
- Do you exit Ubisoft Connect every time? This would be exiting the launcher from the dashboard if it still shows it is running in the background.
NO, but it keeps telling me it will log me out for being offline for extended time (after I wake my computer from sleep)
- Do you ever have any issues with having to complete 2SV every time that you log in, even when you have your device as marked as trusted?
YES - this is very annoying. Other companies' products REMEMBER my computer for the selected period (1 week, 1 month, etc) and those authentication methods don't ask for the 2SV code until the selected time period isn't over. 

There is a serious bug in Ubisoft Connect which breaks cloud syncing of saved games and 2-factor authentication. 

Summary: Ubisoft Connect client cannot handle if the computer name contains characters from the extended ASCII table.
Expected Results: Cloud saves and 2-factor authentication to work as intended.
Actual Results: Cloud saves don't work at all. 2-factor authentication works for a few hours but when I turn on my computer again I have to authenticate it again even if I ticked that this is a trusted computer before. And so on.
Steps to reproduce: 1. In my case the computer's name contained the ASCII character 0x90. That's it. Cloud syncing and 2-factor authentication broke. 2. I renamed my computer in Start > Settings > System > About so it contains only basic ASCII characters and cloud syncing and 2-factor authentication is working fine.