Xfinity has been bugging me about my ancient modem so updated with Arris SBG10 modem/router, which I got from Ebay. Overall setup was straightforward and it basically works, but DHCP service is weird. I add entries to the list of reserved clients, following the “add”/”apply” protocol. I get the refresh/log back in routine as described in the tutorial. But the entries don’t stay on the list over refresh/reboot. I also tried changing a linux computer on my home LAN to Fixed IP, but the SBG10 doesn’t consistently accept that address. Sometimes it does, sometimes it assigns a new address. My SBG10 also seems erratic just showing all attached clients.
Is the SBG10 known to do this sort of thing? Perhaps I just got a bum example?