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Forum Discussion
Solved
R7500 Router DHCP address pool issues
The router is updated with the latest firmware (110). On both wired and wireless devices, some (often many) addresses end up as 169.x.x.x or 172.x.x.x addresses. I am using 192.168.1.x subnet. Thi...
Resolved this problem. The network has an Ooma box on it for IP phone. This box is usually plugged into the internet cable modem, then the router plugs into the Ooma box. I use the ooma box attached to the router instead, with the router attached to the cable modem.
The Ooma box Cat cable was plugged into the "Network" plug instead of the "internet" plug. The Ooma box has a DHCP server inherent to the network plug, so a router plugged into it can obtain an address from it. This was causing rogue dhcp address request responses in a network configuration that did not match my network.
I swapped the cable to the internet plug, rebooted everything, all the incorrect addresses being handed out to all the devices on my network disappeared and everything looks good. I am still getting periodic drop of the wireless network for some reason, but that's a different problem.
Resolved this problem. The network has an Ooma box on it for IP phone. This box is usually plugged into the internet cable modem, then the router plugs into the Ooma box. I use the ooma box attached to the router instead, with the router attached to the cable modem.
The Ooma box Cat cable was plugged into the "Network" plug instead of the "internet" plug. The Ooma box has a DHCP server inherent to the network plug, so a router plugged into it can obtain an address from it. This was causing rogue dhcp address request responses in a network configuration that did not match my network.
I swapped the cable to the internet plug, rebooted everything, all the incorrect addresses being handed out to all the devices on my network disappeared and everything looks good. I am still getting periodic drop of the wireless network for some reason, but that's a different problem.