@AllegedGoose Does your C80(EU)_V2 support OneMesh ? If it does you can use it as your main router and connect C80(EU)_V1 as a satellite router using WPS button - more details in this post.

@Albert_B Most probably it will give you an error message, because different FW regions are not interchangable - that was explicitly noted on the FW support page.

@mountain64 You may contact your local tech support for assistance and describe the issue in an e-mail - here.

@craig101 Did you try to reboot the modem by removing its power supply for 5 sec then check if the DSL line connects automatically ? If you observe the same behavior contact your local tech support...

@minkimoo When it's in AP mode AX6000 can't block any client devices because it can't use Access Control black list which is available in router mode - check this FAQ. Although recently some router...

@RTouris If I understand correctly your AX55 WAN IP address is 192.168.1.50 and AX55 LAN IP address is 192.168.5.1. If that's correct, there's no way to browse the web management interface of AX55...