RBR750 (Costco set) only get 85-98mbps on 275 mbps Xfinity (Comcast ISP)

What Firmware version is currently loaded?
What is the Mfr and model# of the Internet Service Providers modem/ONT the NG router is connected too? 

What devices are you using to speed test with? 

What is the size of your home? Sq Ft?
What is the distance between the router and satellite(s)? 30 feet or more is recommended in between RBR and RBS to begin with depending upon building materials when wirelessly connected.
https://kb.netgear.com/31029/Where-should-I-place-my-Orbi-satellite

What channels are you using? Auto? Try setting manual channel 1, 6 or 11 on 2.4Ghz and any unused channel on 5Ghz.

Any Wifi Neighbors near by? If so, how many?

Try disabling the following and see:
Armor, and Set 20/40Mhz Coexistence to 40Mhz only. Set Short preamble instead of Long preamble modes. Save settings and reboot the router and satellite(s).

You can find other speed diagnosis steps in the community faq: https://community.netgear.com/t5/Orbi-AX/Community-FAQ-My-Orbi-speeds-are-slow-inconsistent-and-don-t-my/m-p/1982974/highlight/true#M7849

Can you also characterize the type/brand of devices (wired and wireless) you have connected?  That 98 is awful close to 100 which seems like it may be a hardware cap.  I have previously experienced a Sonos-induced "Backfeed" (for lack of a better term) that forced my gear to lower speeds until I figured it out.

Any progress on this? 

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tickytock wrote:

Hi, 

 

I purchased the Costco RBR750 set and running on Xfinity (Comcast) 275mbps plan but I only get 85-98mbps average in all my wireless devices. Any suggestion? Did I set it up wrong? 

 

Please advise. 

 

Thank you

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