I get the impression this is an old question but: how to change the base address and subnet on the Hub 3? I need to change from 192.168.0 to 192.168.2...
I've just had my 2ac replaced with a 3 and am trying to trying to integrate it with my existing DHCP regime (handled by a RPi Pihole) and don't want to have to reconfigure all the DHCP reservations and the occasional static IP.
It is possible to change the address if you want to keep it in router mode, it's just a bit of a faff in certain software versions do to bugs / faulty error checking.
Do you also have a WiFi router? If so, putting the hub into modem mode will place it out of the way on 192.168.100.1, but your WiFi router will get an internet address and be able to use anything else internally, so could happily sit on 192.168.2.1