GT-AX11000 keeps crashing after every few days (WiFi so it seems), and need to hard-reboot to get it working again

[Power2All]

see if you can find a replacement AC/DC adapter that fits as well. Use the DC voltage and current spec on the existing one .

Tip diameter and polarity are the tricky part of the spec. which ASUS doesn't specify, sadly.

Yah no worries, but for the moment I have no replacement yet.

 

[Power2All]

I've now installed:
GT-AX11000_3.0.0.4_388_24403-gd4e3d0c_ubi.w

See if this stays stable.