Disable auto change IP address

So the modem is a gateway thus having it's own router built in. Even though IP Pass thru should be working, I believe this depends if the modem is in full gateway mode or if possible, bridged. If gateway mode and using IP pass thru, then I believe the DHCP services are still going on the modem thus maybe giving a 192.168.something address to the Orbi router. And the Orbi is having a hard time with this. 

Can you tell us what the Orbi router has for an IP address ON the Advanced Tab status page currently? Is the public IP address ##.##.###.### or a 192.168 something? 

If your seeing a 192 address or anything other than the public, this could be the cause. 

I would try one fo the following to see if this corrects the bad DHCP detection behavior between the modem and Orbi:

Couple of options,
1. Configure the modem for transparent bridge 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. If this is possible this would be prefered. If not, go to #2. 
2. If you can't bridge the modem, disable ALL wifi radios on the modem, configure the modems DMZ or IP PassThru for the IP address the Orbi router gets from the modem. Then you can use the Orbi router in Router mode. I would reserve an IP address ON the modem for the Orbi router. This would help avoid any conflict as well. You can set up a 192.168.0.1 IP address for the LAN side of the Orbi. This is what I use. 

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

This would be a last resort and something to test to see if this helps as well. 

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garrettg84 wrote:

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FURRYe38 wrote:

What FW is currently loaded?
What is the Mfr and model# of the ISP modem the NG router is connected too?

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Orbi

Model: RBR50

Router Firmware Version: V2.2.1.210

Cable Modem/router

MFR: Ubee

Model: DDW36C

Part No: DDW36C1

HW Version: 3.22.1

 

Cable modem is configured in 'passthrough' mode. Whatever device is connected gets a public IP once uplink/downlink is established.

 

Before uplink/downlink, 192.168.100.1/24 IP address is assigned to modem. Connected host(s) get 192.168.100.(11-254)/24 IP until uplink/downlink is established.

 

After uplink/downlink is established, lan link is dropped and brought back up to induce DHCP discover. Public ISP owned IP is handed out via DHCP (stays same for approximately one month) to connected host - only one host can get a public IP, other hosts fail to connect. Orbi router is only connected device.

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