@mcscx Each router has a DHCP server, enabled. While I've completely shut down one router for now, I was planning to give each a range of IP addresses to pull from that do *not* overlap (by default they do, and I wondered if that could be a problem). as I said, one is now shut down, and on the other I've configured DHCP on the other to use a fixed ('reserved') address for Tine (actually, one for LAN, and another for Wifi, since these two have separate MAC addresses. That works, too, but solves very little since it seems NetworkManager server is crapping out - sometimes without recovery - and I cannot figure out why that happens. I think I need to solve this first, before adding the other router again (and giving it a separate lease pool). No more time for that this week... :(