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Forum Discussion
garrettg84
Jan 31, 2019Guide
Disable auto change IP address
I've seen similar posts about a way to disable the auto change IP address before. They've been brushed off. The 'answers' and 'solutions' are wrong. There is an issue with the product. Every month wh...
FURRYe38
Feb 02, 2019Guru - Experienced User
Most cable modems, save the ones that maybe have built in routers that default to 192.168.1.1, most other stand alone cable modems default to 192.168.100.1, this would not conflict with what NG uses as there default address of 192.168.1.1. Of course I don't use modems with routers built in so I have not had chance to experience this kind of issue. For the modems I have used, all stand alone, there isn't any kind of IP conflict in this regard with any of my routers using .0.1 or .1.1. Even if I remove the RF cable.
I presume the only issue here would be if the modem router unit uses a default or falls back to 192.168.1.1 when the RF cable is disconnected and if you have your NG router using same IP address string, then the Orbi would detect this then switch itself to a 10. something IP address pool. Correct?
Looking at the user manual, about 2.5 years old, I see it's default is 192.168.100.1
The DDW36C is pre-configured with the default parameters for Charter Communications
(formerly Time Warner Cable).
Local Port Address: 192.168.100.1
Web Interface: http://192.168.100.1
Operation Mode: NAT Mode
Subnet Mask: 255.255.255.0
This shouldn't be a problem...
garrettg84
Feb 02, 2019Guide
I think you are catching on to why I'm agitated. Regardless of what the modem defaults to, my internal LAN is set to 10.99.99.0/24. This is not any of the known (to me) defaults for any network gear on the planet. But somehow, it is still detecting a conflict and still flipping out my Orbi.
FURRYe38 wrote:
Most cable modems, save the ones that maybe have built in routers that default to 192.168.1.1, most other stand alone cable modems default to 192.168.100.1, this would not conflict with what NG uses as there default address of 192.168.1.1. Of course I don't use modems with routers built in so I have not had chance to experience this kind of issue. For the modems I have used, all stand alone, there isn't any kind of IP conflict in this regard with any of my routers using .0.1 or .1.1. Even if I remove the RF cable.
I presume the only issue here would be if the modem router unit uses a default or falls back to 192.168.1.1 when the RF cable is disconnected and if you have your NG router using same IP address string, then the Orbi would detect this then switch itself to a 10. something IP address pool. Correct?
- FURRYe38Feb 02, 2019Guru - Experienced User
Ok, so lets try this.
Can you download the Orib v210 router FW for the RBR unit?
https://www.netgear.com/support/product/RBR50.aspx#download
When you get this file, Power OFF the modem. Let it sit there.
Connect up a wired PC and send the v210 FW to the RBR unit and let it process it. After it's processed, hold the back reset button in until the top LED turns AMBER, then let go. Power ON the modem now. After it's ready, walk thru the setup wizard on the RBR and setup the RBR from scratch. Let the wizard detect the modem and complete the setup. When you get to the end, check to see that the RBR should be using 192.168.1.1 for the LAN and if your modem is pass thru or bridged, check the IP address ON the WAN port. IT should be a ##.##.###.###?
Let us know what you find.
Test this further, disconnect the RF cable from the ISP Modem and reboot/power cycle the modem. Check the IP of the orbi...If the default is 192.168.100.1 for the modem, the Orbi should still maintain it's .1.1 address...
- garrettg84Feb 02, 2019Guide
I'm already on that version...
Router Firmware Version
V2.2.1.210I factory reset it just the other morning when my cable modem reset (which I've done at leaset once before this time). By default the address comes up on the 192.168.1.0/24 subnet. Then I promptly change it to 10.99.99.1. I don't even want to sit on the same first octet as my cable modem. I don't want a chance of an IP conflict. Then there's Orbi's "special" behavior with IP conflict detection....when there is no conflict.
- FURRYe38Feb 02, 2019Guru - Experienced User
The LAN on the Orbi is coming up 192.168.0.1 after a reset? This is not correct. It should be 192.168.1.1...
I knolw your already on v210. I'd like you to again, manually re-load v210 using the steps I provided to see this changes anything.
garrettg84 wrote:
I'm already on that version...
Router Firmware Version
V2.2.1.210I factory reset it just the other morning when my cable modem reset (which I've done at leaset once before this time). By default the address comes up on the 192.168.1.0/24 subnet. Then I promptly change it to 10.99.99.1. I don't even want to sit on the same first octet as my cable modem. I don't want a chance of an IP conflict. Then there's Orbi's "special" behavior with IP conflict detection....when there is no conflict.