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:

A factory reset will wipe the router settings and you would need to reapply them again. First check with your ISP upon it's settings requirements. Does that require VLAN to connect to the Internet? Note them all down and compare them against your current router settings. Either save your current settings or note them down as a backup before any changes. If you notice under your VLAN settings, it has been enabled by tag groups. You have the first one enabled on Port 4 and the Wifi for the Internet (VLAN ID: 201). Yet for Ports 1, 2 and 3 (VLAN ID: 3501) it's not ticked as enabled. You either want to tick Wired Ports 1, 2 and 3 into the first VLAN tag group (set it to ALL), allowing them that access. Else enable the 2nd VLAN group and finish setting that up if you have some reason for the two groups being separate.

I would suggest deleting both VLAN tag groups and setting up a new one. You probably just need the one, unless you are setting up a special internal network? If not, consider doing this. Note that this will temporary drop your Internet connection. So you would want to: Administration > Backup Settings > Save a Copy of Current Settings > BackupJust incase you wish to go back to the settings you have now. Advanced > VLAN / Bridge Settings Tick the circle of each VLAN group and select Delete on them. Enable VLAN / Bridge Setup again > By VLAN tag group NAME: InternetVLAN ID: 3501Priority: 0Wired Ports: AllWireless: All That appears to be what your ISP needs to connect to the Internet and will now be applied to all your network ports and Wifi.

christoepherr wrote: I plugged in my RBR850 to the patch panel. Is this what you are trying to fix? What does this mean? I went into the CX4000 settings to setup Transparent Bridge mode and then removed it from the equation. The CX4000 has nothing to do with Netgear. Help with that is best sought from whoever made it. The RBR850 Orbi router is not one of the Netgear cable modem/routers covered in this area. While many questions about routers are generic and could be answered anywhere, some things need specialist knowledge.You might get more help, and find earlier questions and answers specific to your device, in the appropriate section for your hardware. That's probably here: Orbi - NETGEAR CommunitiesIn the meantime you could visit the support pages:Support | NETGEARFeed in your model number and check the documentation for your hardware. Look at the label on the device for the model number.You may have done this already. I can't tell from your message. I mention it because Netgear stopped supplying printed manuals and CD versions some years ago and people sometimes miss the downloads.

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-NAThttps://kb.netgear.com/30187/How-to-fix-issues-with-Double-NATCouple 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:

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.

Really at a loss? Self-Assigned IP with Ethernet

26 Replies

michaelkenward
Guru
Apr 01, 2022
christoepherr wrote:

I plugged in my RBR850 to the patch panel.

Is this what you are trying to fix?

What does this mean?

I went into the CX4000 settings to setup Transparent Bridge mode and then removed it from the equation.

The CX4000 has nothing to do with Netgear. Help with that is best sought from whoever made it.

The RBR850 Orbi router is not one of the Netgear cable modem/routers covered in this area.

While many questions about routers are generic and could be answered anywhere, some things need specialist knowledge.

You might get more help, and find earlier questions and answers specific to your device, in the appropriate section for your hardware. That's probably here:

Orbi - NETGEAR Communities

In the meantime you could visit the support pages:

Support | NETGEAR

Feed in your model number and check the documentation for your hardware. Look at the label on the device for the model number.

You may have done this already. I can't tell from your message.

I mention it because Netgear stopped supplying printed manuals and CD versions some years ago and people sometimes miss the downloads.
FURRYe38
Guru
Apr 01, 2022
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
  Tutor
  Apr 01, 2022
  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.
  - FURRYe38
    Guru
    Apr 01, 2022
    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.

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Really at a loss? Self-Assigned IP with Ethernet