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Tailscale installer not installing interface once interface got uninstalled manually (on Windows 10) #1327

@huweiATgithub

Description

@huweiATgithub

Describe the bug
Once uninstall the Tailscale interface (from Device Manager -> Network adapters -> Tailscale Interface, right-click uninstall), a re-install will not install the network adapters.
Tried 1.4.4, 1.5.58(unstable) installer. Tried also remove two tmp folders under system32 and users to no avail. Tried restart windows, no effect.

To Reproduce
Steps to reproduce the behavior:

  1. Uninstall interface in the device manager
  2. Reinstall Tailscale

Expected behavior
Tailscale installer should install its network interface.

Version information:

  • Device: laptop
  • OS: Windows
  • OS version: Windows 10 Pro 19042
  • Tailscale version: 1.4.4, 1.5.58

Additional context
Error Message from GUI pop up window:
Failed to connect to Tailscale service.
Version 1.5.58 (t11bbfbd8b-g89e82a881)
LogID: d22d0a3b0969a53f8e5660b4ed20aa21ce638427c8c531735cc141221a96578b
(Ctrl-C to copy this text)

The log files in C:\Windows\System32\config\systemprofile\AppData\Local\Tailscale\Logs seems to repeat the following message:

2021-02-11T18:22:20.021-05:00: 2021/02/11 18:22:20 Program starting: v1.5.58-t11bbfbd8b-g89e82a881: []string{"C:\Program Files (x86)\Tailscale IPN\tailscaled.exe", "/subproc", "8244dabc2525a63a36660b10937621355b79ccbef7f6443cf96a0bc89058eb9a"}
2021-02-11T18:22:20.021-05:00: 2021/02/11 18:22:20 subproc mode: logid=8244dabc2525a63a36660b10937621355b79ccbef7f6443cf96a0bc89058eb9a
2021-02-11T18:22:20.021-05:00: 2021/02/11 18:22:20 Starting userspace wireguard engine with tun device "Tailscale"
2021-02-11T18:22:20.132-05:00: 2021/02/11 18:22:20 [Wintun] CreateAdapter: Creating adapter
2021-02-11T18:22:20.306-05:00: 2021/02/11 18:22:20 CreateTUN ok.
2021-02-11T18:22:20.410-05:00: 2021/02/11 18:22:20 link state: interfaces.State{defaultRoute=Wi-Fi (Intel(R) Wireless-AC 9560 160MHz) ifs={Wi-Fi:[192.168.1.179] vEthernet (Default Switch):[172.17.32.1] vEthernet (WSL):[172.25.112.1] Bluetooth Network Connection:down Ethernet:down Ethernet 4:down Local Area Connection* 13:down Local Area Connection* 3:down NordLynx:down} v4=true v6global=false}
2021-02-11T18:22:20.458-05:00: 2021/02/11 18:22:20 Creating wireguard device...
2021-02-11T18:22:20.458-05:00: 2021/02/11 18:22:20 Creating router...
2021-02-11T18:22:20.462-05:00: 2021/02/11 18:22:20 router: dns: using dns.windowsManager
2021-02-11T18:22:20.462-05:00: 2021/02/11 18:22:20 Bringing wireguard device up...
2021-02-11T18:22:20.462-05:00: 2021/02/11 18:22:20 [v2] UDP bind has been updated
2021-02-11T18:22:20.462-05:00: 2021/02/11 18:22:20 [v2] Interface state was Down, requested Up, now Up
2021-02-11T18:22:20.462-05:00: 2021/02/11 18:22:20 Bringing router up...
2021-02-11T18:22:20.462-05:00: 2021/02/11 18:22:20 router: firewall: marking for removal
2021-02-11T18:22:20.462-05:00: 2021/02/11 18:22:20 router: firewall: starting netsh goroutine
2021-02-11T18:22:20.462-05:00: 2021/02/11 18:22:20 router: firewall: clearing Tailscale-In firewall rules...
2021-02-11T18:22:20.491-05:00: 2021/02/11 18:22:20 [v2] Device closing
2021-02-11T18:22:20.526-05:00: 2021/02/11 18:22:20 [v2] Device closed
2021-02-11T18:22:20.574-05:00: 2021/02/11 18:22:20 router: firewall: cleared Tailscale-In firewall rules in 112ms
2021-02-11T18:22:20.574-05:00: 2021/02/11 18:22:20 router: firewall: deleting any prior Tailscale-Process rule...
2021-02-11T18:22:20.600-05:00: BabysitProc: backoff: 29436 msec

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