When trying to access the gui, I'm being asked for a password I never created

Up till a month or so ago, I’ve been able to backup my laptop to an external drive without too many hassles using Duplicati, and on one occasion even restored a file I accidently deleted. Yay for backups!

However, now when my browser opens up the gui, I get the following error message: “Connection to server was rejected due to invalid authentication. Log in again, or re-open the page from the TrayIcon (if applicable)”. Then, if I click “Log in”, I’m asked for a password I never created. My understanding is that a recent update is likely to blame. My laptop is running Windows 10 64-bit and my current version of Duplicati is 2.1.0.2.

My understanding is that a major change has been made which requires the use of a password in order to access the gui interface. I should have read the update change log, which I assume would have warned me I should create a password first before installing the new update. My first thought was to just uninstall the current version and reinstall an earlier version; however, I’m afraid if I do that I could possilbly lose access to all my backups on my external drive. After looking through the how-tos and this forum, I think all the info is there to solve the problem, but I lack the theoretical basis or experience to figure it out. I’m not super comfortable using the command line interface and need step by step instructions when using it (although I do want to learn). I can copy and paste, but not much more.

If someone would be willing to point me in the right direction, I’d be most grateful. Thanks for reading, and my apologies if I’m not posting in right place or if I’ve missed something obvious.

Hi @greenleaf, welcome to the forum :wave:

This is described here:

Essentially: close all tabs, right click the Duplicati TrayIcon (bottom right, left of the clock), and choose “Open”.

v2.1.0.4_stable_2025-01-31

Important changes from 2.0.8.1

Updated to .NET8 with OS specific builds
Using Kestrel as the API/UI server
Mandatory password and new authentication scheme for server
Settings database version updated to v8
Backup database updated to v13
Automatic updating not supported

but I’m still not sure why there’s nothing on the Downloads page talking about such things.
There was a somewhat understated link put on the login screen, if one goes as far as that:

which leads to the manual as posted above, but IMO this upgrade needs more user notes.
By now, it should probably be better known which ones are likely to bother those updating.

For those who were diligent enough to read the notices in advance (it took a GUI click), the transition to the 2.1 release doesn’t enjoy this, but it does get them to the Downloads page.

Okay, I feel like an idiot. For some reason, I could not comprehend that launch from the tray icon means that I need to click the the duplicati icon in the system tray (which is where the battery, wi-fi, and Safely Remove Hardware and Eject Media tray icons are also located). Thank you for being so clear!