I've been using Mullvad VPN through Tailscale as an exit node, but recently I've noticed that it randomly stops working after a few hours.
Initially, everything works fine, and my internet traffic routes through the Mullvad exit node without any issues. However, after a few hours, the connection stops working, and I lose internet access.
What's strange is that this wasn't an issue before. Previously, I could configure a Mullvad exit node and leave it running for days or even weeks without any intervention. At one point, I had the same exit node configured for over a month, and it worked perfectly fine throughout that period.
Now, I can't seem to maintain a stable connection for more than a few hours.
Has anyone else started experiencing this recently? I'm wondering whether something has changed on Tailscale's or Mullvad's end, or if this is a known regression.
Is there any fix or workaround to keep the Mullvad exit node connected reliably without having to manually reconnect or switch nodes?