Hello @Anina, only 1 IP is in use at the moment, I know Cablecom has quite long DHCP lease periods so perhaps they are still being held from the previous modem? Can you initiate a “release” of all IP addresses and then the router can renew the DHCP lease and pickup a new address and any allocated by unused ones can be released?
I did a Factory Reset and reconfigured back into Bridge mode - still the same issue and the first router picked up the same IP address hence why I think the others may be held from before.
Upstream is 15mb/s according to SpeedTest - that seems quite reasonable?