[Flint 2 / 4.9.0] Tailscale exit node toggle not working

[waffle2827]

Device: GL-MT6000 (Flint 2)
Firmware: 4.9.0
Tailscale version: latest 1.96.4 (via GitHub - admonstrator/glinet-tailscale-updater: Automated Tailscale updater for GL.iNet routers: periodically checks for new releases, downloads the correct build, and installs/updates Tailscale reliably via script (for OpenWrt/GL.iNet firmware) · GitHub )

Issue:
The new "Run as Exit Node" toggle under Applications → Tailscale does not work as expected. After enabling it and clicking Apply, the exit node never becomes approvable in the Tailscale admin console — the checkbox under Edit route settings remains inactive.

Diagnosis:
Running tailscale debug prefs via SSH reveals the root cause — the exit node routes (0.0.0.0/0 and ::/0) are never added to AdvertiseRoutes. Only my existing subnet route is present:

"AdvertiseRoutes": [
    "10.10.0.0/24"
]

This means the GL UI toggle is not passing --advertise-exit-node to the Tailscale daemon.

Workaround:
Running the following manually via SSH does work:

tailscale set --advertise-exit-node --advertise-routes=10.10.0.0/24

However this is not a permanent fix as the setting may be overwritten by the GL management script on reboot or when the UI is used.

Expected behavior:
Enabling the toggle and applying should add 0.0.0.0/0 and ::/0 to AdvertiseRoutes, making the exit node approvable in the Tailscale admin console.

Hoping this can be addressed in a point release. Happy to provide any additional debug info.

[will.qiu]

Hi

We tested this feature using the built-in Tailscale package on Flint 2 v4.9.0 Release, and it appears to be working correctly:

It also appears to work correctly after updating with @admon's script:

Perhaps you could try restoring the gl_tailscale script to its default version and see if that resolves the issue:

cp -p /rom/usr/bin/gl_tailscale /usr/bin/gl_tailscale

If the issue persists, a factory reset may be required:

Repair network or reset - GL.iNet Router Docs 4

[waffle2827]

Thanks a lot for the response. I noticed your version of Tailscale was more recent than mine, so I updated using @admon’s script again, and the Exit Node works perfectly now.