When attempting to use remote desktop from a Windows 10 (21H2 19044.1566) box to an Ubuntu 22.04 LTS (fully patched), I receive the following error:

An authentication error has occurred. The token supplied to the function is invalid.

Remote computer: {Computer name}

This is when attempting to RDP with an AD domain user, which I can confirm logs in successfully locally.

6

2 Answers

Verify the password in Settings->Share->Remote Desktop in Authentification section, maybe it's not the same as the one you use to connect in SSH or locally

2

Unsecuring the "Login" Keyring, as described in this answer has solved the issue for me.

Password and Keys application -> Right-click on Login keyring -> change the password to blank. This adds a security vulnerability but might be acceptable in some setups.

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