Tailscale stops working after 1.8.0-3 update. Windows Server (RDS issue), mutliple users

Windows
1

I’ve updated from 1.6.0 to 1.8.0 and right after that got errors from tailscale:
Source NETBT error 4311:
Initialization failed because the driver device could not be created. Use the string “000000000100320000000000D71000C0110100009A0000C09B040000000000000000000000000000” to identify the interface for which initialization failed. It represents the MAC address of the failed interface or the Globally Unique Interface Identifier (GUID) if NetBT was unable to map from GUID to MAC address. If neither the MAC address nor the GUID were available, the string represents a cluster device name.

And window pop up:
2021-05-12_11-24-17

After digging taskmanager I’ve found that several users logged on and started tailscale-ipn.exe automatically. It happened because Tailscale installer puts tailscale.lnk to StartUp folder for all users on server - C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp .
Just remove link from this folder and leave it only for your user.

2

Hi, Could you hold Control while right-clicking on the tray icon to get the Debug menu, and click on Bug report… ? Then send the text it shows into support@tailscale.com email.

3

When error appears it’s unable to get debug info.
2021-05-13_17-25-24

Only when I close second session from the other user I can get debug data.

Bugreport marker created:
BUG-bbe2e1538db7dd00aad95b72d54ff18689e623f334ef4af8881d7afa45a81950-20210513142502Z-226f488cc0c259e4
Email that to support@tailscale.com with a description of the problem.

4

We logged this issue Windows OS: Error occurred after upgrade form 1.6 to 1.8.3 on windows server environment. · Issue #1920 · tailscale/tailscale · GitHub , please subscribe to it for future updates and feel free to share more observations. Also if you can share your platform details would be helpful.