I don’t know if the following post will be of any assistance. I know that currently Tailscale is in beta, and doesn’t support GL.iNet devices as exit nodes.
I found a solution on the Reddit forums that works for me.
First setup your tailscale remote subnet router on the Mt3000 as usual. Then…
On the MT3000 Admin Panel
Under menu item System->Advanced
Go into the LUCI admin panel then select Network → Firewall.
By default, below you will see 3 zones:
lan > wan
wan > REJECT
guest > wan
Click on “EDIT” on the second one ( wan > REJECT)
Then click on the second top tab “Advanced Settings” and in the covered devices dropdown select tailscale0. …