NETGEAR is aware of a growing number of phone and online scams. To learn how to stay safe click here.
Forum Discussion
Devices pulling invalid IP Addresses and losing connection
Need help. I have CM1000 cable modem and RBR50 Orbi mesh network with Xfinity (Comcast) internet service. 2 weeks ago I installed a new entertainment center and needed to unplug modem and router...
The CM1000 is a "plain modem". All it does is interface between the coax cable system and the ethernet router system.
What is supposed to happen is the Orbi asks for an IP address and the cable system returns a "public" IP address for the Orbi to use.
This will be found on the Orbi web interface, http://orbilogin.net. Click on the "Advanced" tab and the "Internet block will show this public IP address.
The Orbi assigns "private" IP addresses to every device that asks for one. This is controlled on the Advanced Tab, Setup, LAN Setup. Normally, the Orbi assigns itself the address 192.168.1.1 and gives out addresses from the "pool" to devices. (There is a method to assign specific IP addresses to individual devices on the LAN setup page as well.)
If some devices are getting private addresses that begin with 172.16, then there is another device on the network that is responding to DHCP requests. Perhaps the new entertainment center has an option to act as an address server?
My suggestion is to turn off the entertainment center (the last thing added to the network). Turn off the CM1000 modem and Orbi.
Turn on the CM1000 and wait for it to "settle down". Turn on the Orbi, and see what happens. If everything returns to normal, it's time to check into the entertainment center configuration. (I would say, "slap it upside the head", but that reflects badly on my red nect roots.)
As well as giving it a good slap, and in line with the idea that you should check the settings on the entertainment center, it might be worth looking into setting its local IP address. (What is it by the way, maybe someone has already turned up here with issues.) Tell the entertainment center always to use the same IP address.
This is pure speculation on my part, but it can fix issues with other stuff on networks, such as printers. I am sure that CrimpOn will tell us if this is a nuts suggestion.
michaelkenward wrote:This is pure speculation on my part, but it can fix issues with other stuff on networks, such as printers. I am sure that CrimpOn will tell us if this is a nuts suggestion.
Every "permanent" device in my network has an assigned IP address, and that includes tablets and smartphones. About the only things getting IP's from the DHCP pool are gizmos that I plug in to test and then put in a box.
(Sad, also, that I cannot even spell "Red Neck" correctly.)
CrimpOn wrote:
Every "permanent" device in my network has an assigned IP address, and that includes tablets and smartphones. About the only things getting IP's from the DHCP pool are gizmos that I plug in to test and then put in a box.
Something for Chad135 to try then?
Assigned in the router? On the device? Both?
CrimpOn wrote:(Sad, also, that I cannot even spell "Red Neck" correctly.)
Not the place to talk about Jackson Browne's songs.
michaelkenward wrote:
Assigned in the router? On the device? Both?Gosh, I only set a static IP when I'm using a laptop to tftp firmware to an Orbi. "Assigned IP" on the LAN setup page is the only way to go.