RBK 50 Wifi speed is 35mbps while ethernet speed is 500mbps

[EGold]

I cannot figure out why the wifi speed of my orbi RBK50 is 25-30mbps, when the RBK50 ethernet speed is 500mbps; the Xfinity routers ethernet speed is 500mbps the Xfintiy wifi speed is 150mbps. The Orbi's speed is paltry in comparrison. I have tried everything. I am so dissappointed in the is product, I am ready to toss it out.

[FURRYe38]

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? If your ISP Modem already has a build 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 

[vajim]

finity routers?