Slow LAN/Fast WiFi on Orbi RBK33

[Danmccune]

I am getting about 50% of my availble bandwidth using the LAN port on my RBR40 Orbi Router.  My internet is 1GB fiber.
If I take the ethernet cable from the WAN port of the Router and plug it into my laptop, I get consistent speeds around 800Mbps.
If I plug my laptop into one of the LAN ports of the Router, I get consistent speeds around 400Mbps.

Anyone else having this problem?  Is there a configuration setting that might be the culprit?

[plemans]

Firmware on the router? 

what ont/gateway is it connected to? 

Make sure parental controls, traffic monitoring, and access control are disabled. If they were enabled, disable them and reboot the router. Then try. 

[Danmccune]

Firmware V2.5.1.22

ONT: AT&T BGW210 (fiber)

Parental controls, traffic monitoring, and access control are disabled, and have always been disabled.

Rebooted and reset multiple times.  I've been troubleshooting for a week with no success.

[FURRYe38]

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

ATT Modems:
https://www.f0il.com/how-to-arris-bgw210-700-modem-router-with-netgear-xr500-router/
https://community.netgear.com/t5/Orbi/How-do-I-setup-bridge-mode-in-the-ARRIS-BGW210-700/m-p/1875994...
https://community.netgear.com/t5/Orbi/Configuring-ORBI-RBR50-with-ATT-Fiber/m-p/1999922#M106198
https://community.netgear.com/t5/Orbi-AX/Orbi-AX-6000-and-AT-amp-T-fiber-gateway-issue/m-p/1890125/h...

[harrycharlesop]

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@plemans wrote:

Firmware on the router? 

what ont/gateway is it connected to? 

Make sure parental controls, traffic monitoring, and access control are disabled. bkexperience If they were enabled, disable them and reboot the router. Then try. 

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Thanks, that really helped.

[harrycharlesop]

Thanks, that really helped.

[Danmccune]

I configured the ONT for passthru, and reset the Orbi Router, but I am still having the same problem.

[Mikey94025]

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@Danmccune wrote:

I configured the ONT for passthru, and reset the Orbi Router, but I am still having the same problem.

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Hmmm, is the RBR40 not powerful enough to handle your full upstream speeds?  You've already tried all the wired speed issue steps in the community FAQ: https://community.netgear.com/t5/Orbi-AX/Community-FAQ-My-Orbi-speeds-are-slow-inconsistent-and-don-....

[Danmccune]

So, I resolved the issue, kind of.  I'm using the router on the ONT, configured the Orbi in Access Point mode, and connected the ONT to the Orbi on a LAN port rather than the WAN (yellow) port.  With this method, I can get ~800Mbps on my laptop with a wired connection.  

The problem seems to be the WAN port.  If I connect the ONT to the Orbi thru the WAN port, I get ~400Mbps.  If I use the LAN port, I get ~800Mbps.  

The only problem I have now is that the Orbi continues to flash purple.

[FURRYe38]

Sounds like there is a problem between the RBR and your ONT while the RBR is in router or AP mode when using the WAN port on the RBR. 

The WAN port has to be used on the RBR while in either mode to get the top ring LED to turn OFF and work correctly.