Mhh, you are probably right. I’m really hesitant to invest more time into troubleshooting tailscale. My own tailscale connections at home are stable, and for troubleshooting at my family member I always have to drive and setup my notebook there.

Maybe I could try to setup wireguard directly in the fritzbox router at my family member. That might need less maintenance as running tailscale in a docker container, as it would remove the wireguard connection out of the NAS itself.

Opening a port directly gives me kind of an ick, because I don’t want to fiddle too much with the family members network. If something happens with it, I will be the one troubleshooting it, and I don’t need more work currently.

So Tailscale connection instability is not common? I don’t like debugging this, since the NAS is remote and I don’t have much time going to the family member again and again for this. It definitely is something on the remote site, since the tailscale connections at my home are stable.

I will definitely have a look at Kopia. I was in search of a good open source backup solution, since borg also has its flaws. I will check it out, when I setup the remote NAS again (as I also want to put bigger disks in it)