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Forum Discussion
christoepherr
Apr 01, 2022Tutor
Really at a loss? Self-Assigned IP with Ethernet
I'm really at a loss here and need some help. I'm not sure what happened or what I did. Will try and explain the best I can. I have CenturyLink Fiber Internet and was given a CX4000 modem/router....
FURRYe38
Apr 01, 2022Guru - Experienced User
Your ISP Modem already has a built in router and wifi. This would be a double NAT (two router) condition which isn't recommended. https://kb.netgear.com/30186/What-is-Double-NAT
https://kb.netgear.com/30187/How-to-fix-issues-with-Double-NAT
Couple of options,
1. Configure the modem for transparent bridge or modem only mode. Then use the Orbi router in router mode. You'll need to contact the ISP for help and information in regards to the modem being bridged correctly.
2. If you can't bridge the modem, disable ALL wifi radios on the modem, configure the modems DMZ/ExposedHost or IP Pass-Through for the IP address the Orbi router gets from the modem. Then you can use the Orbi router in Router mode.
3. Or disable all wifi radios on the modem and connect the Orbi router to the modem, configure AP mode on the Orbi router. https://kb.netgear.com/31218/How-do-I-configure-my-Orbi-router-to-act-as-an-access-point and https://www.youtube.com/watch?v=H7LOcJ8GdDo&app=desktop
christoepherr wrote:
I'm really at a loss here and need some help. I'm not sure what happened or what I did. Will try and explain the best I can.
I have CenturyLink Fiber Internet and was given a CX4000 modem/router. The CX4000 was plugged into the patch panel in my closet. In my patch panel I have four white Ethernet cables that correspond to the floor levels in my town home. Each level has one Ethernet port. Those cables are plugged into ports 1-4 of the CX4000. Then there is one blue Ethernet cable that is plugged into the WAN port of the CX4000.
I went into the CX4000 settings to setup Transparent Bridge mode and then removed it from the equation.
I plugged in my RBR850 to the patch panel. The blue Ethernet cable is plugged into the WAN port of the RBR850 and I plugged the other four Ethernet cables into ports 1-4 so each floor can use the Ethernet jacks. I used my PPoE setting to login to get the Internet working for the router settings.
I was able to plug my laptop directly into the wall and everything worked fine. I did a reset and now I get a Self Assigned IP every time I plug my laptop to any jack on the wall. I just did a router reset and don't know why this is happening. Can anyone help? These are my VLAN settings below:
christoepherr
Apr 01, 2022Tutor
I don’t have the CenturyLink modem/router being used at all though. It’s in a box packed away. The Orbi Router is the only device plugged into the patch panel in my closet. Everything was working before. I just don’t know how a router reset would cause my Ethernet jacks in the wall to no longer provide Internet and I get a self assigned IP when I try to use them now.
- FURRYe38Apr 01, 2022Guru - Experienced User
You'll need to contact the ISP and have them help you ensure the RBR is connected correctly with there services. Ask if there is a PPPoE account log in needed that may have been set then blown away by a factory reset or any other interface devices that maybe needed to connect the RBR in place of there ISP router.
- michaelkenwardApr 01, 2022Guru - Experienced User
christoepherr wrote:
I don’t have the CenturyLink modem/router being used at all though. It’s in a box packed away.So what delivers the Internet to you?
- christoepherrApr 01, 2022TutorI basically followed the steps here to get rid of the CenturyLink modem/router
https://www.reddit.com/r/centurylink/comments/ic4asm/howto_you_may_not_need_that_c4000xg_or_whatever/
Hopefully the picture I attached helps. I got rid of the CenturyLink modem because it was huge and I couldn’t close the patch panel by using it.
And these steps worked. I was able to plug my laptop directly to the jacks in my wall, but after I did a reset they no longer work.- FURRYe38Apr 01, 2022Guru - Experienced User
Well for 1, the RBR should not be placed upside down. There are air vents that need to be used for ambient air flow. Also having it in that closed space may also not give enough air flow for cooling. I hope the RBR is not damaged due to this placement.
Take the RBR out of that location and put it on your desk. Factory reset the RBR and with 1 wired PC connected to the back of the RBR, see if you can access 192.168.1.1 in a web browser....