Sames, I have a bunch of users(2) all streaming jellyfin fine over tailscale, except one house which buffers sporadically over the day.

Their internet speed is fine. It could be WiFi being saturated in their area. It could be the relay being a very old rPi3 just isn’t up to it (The pi, captures their requests through Pi-Hole and proxyies their traffic over tailscale). It could be the laptop they’re using as a client isn’t up to it. Or it could be some setting somewhere.

It’s annoying whatever it is.