Yes, powering off NAS makes issues disappear.
The network issues: the other devices were connected to wifi, but sometimes there was no internet connection or internet just slowed down. I will try to test it when I will be back there. For now I just asked to power off nas…
I havent seen any issues when there were more devices connected. So one person at home and nas powered on had worse experience than 6 people at home and nas turned off.



Oo that may be the issue. Maybe their isp, has similar ip addresses to tailscale vpn