I updated the firmware to 1.2.6 Build 20231130 Hardware version: EU v1 then I connected my laptop via Ethernet with the AX55, changed the AX55 IP to 172.16.10.1 and saved (and it restarted...

@terziyski that's the reason why i started the 1st post :-) When I change the IP to 172.16.10.1, I click on save, the router restarts and I can't reach the router. Not by the old address...

@terziyski This is the error message when I try to change the IP address pool first. So this does also not work.

Set 24 bit mask. When I first try to change the IP address pool, I get an error and can‘t save it.

Just unpacked the Archer AX55 to replace the Archer C7. I want to use the same IP for the router 172.16.10.1 and the IP address pool 172.16.10.2 - xxxxxxx. When I go to Network > LAN and enter the IP...