Exit node not working (probably not DNS)

SUPPORT QUESTIONS
1

Tailscale version 1.16.0
Your operating system & version Windows 10 and Linux PopOS 20.10

Hello,

I have the following issue:

PopOS 20.10 (exit node) and WIndows 10 (client)

When I activate the exit node function on the Windows machine, the internet stops working. I can still ping the exit node via it’s 10.x IP but I cannot ping anything else (including the DNS servers). When I deactivate exit node, it starts working again.

I’ve configured IP forwarding on the exit node and tried disabling the Windows firewall.

Any clues? Thanks :))

2

Initially I thought it is a DNS issue, but actually Windows has set the DNS correctly (as specified in the Tailscale settings). However, it cannot ping those servers so I suppose they are useless. Suspecting some kind of routing issue.

3

And the exit machine itself can ping the servers. Tried both the 1.1.1.1 server and some ISP provided servers.

4

Problem is not with the Windows machine per se, as same issue on my iPhone when I try to use the exit node.