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Forum Discussion
sks1234
Nov 09, 2025Aspirant
RBR750 speed cut in half with BGW320
I have searched the forum looking for a possible answer and have not found any good hits yet. I have my RBR750 directly connected to a BGW320-500 with cat6 and my download speed seems to get cut in half. I am getting 1GB to the BGW320 speed tests verify that. But even when I stand right next to the Orbi router I usually only get around 500Mbps down when I use Speedtest. There was one time I did get 800 down which was a surprise and never got that close again. I have both wifi's turned off and I am in passthrough mode on the BGW320. My RBR750 is set to router mode. Is there something I am possibly missing or is this pretty much all I can expect with the RBS750? Thanks for any tips I may be missing.
10 Replies
- sks1234Aspirant
My apologies first if this is a double post. Thought I had sent it earlier and I'm not seeing it listed.
But, I did the speed test from the Orbi router and it showed 977 Mbps down and 941 up.
- CrimpOnGuru - Experienced User
It would be helpful to know the speed reported by the Orbi router. either
- By logging into the router web interface, navigating to the Advanced Tab, Setup Menu and selecting Speed Test, or
- By selecting the Speed Test feature on the Orbi 'app'. The app reports a Speed Test run on the router, not on the smartphone running the app.
An Ookla Speed Test run on a device with 802.11ax, 2x2 MIMO from very close to the WiFi access point (not even one wall) should exceed 500Mbps (the Orbi 750 has an 80MHz channel):
At 40 ft. distance, with a couple of walls in the way, then performance will be under 500Mbps.
- CrimpOnGuru - Experienced User
sks1234 wrote:
The speeds I'm quoting are all from standing right next to the RBR
What device is being used to report this speed? and what app is being used on the device?
- sks1234Aspirant
The device I have been using is an iPhone 11 Pro using the Speed Test app. I have a Mac Mini M4 about 40 feet away with two small walls at a forty-five degree angle from the router so I just did a side by side test with the Mac Mini and the iPhone, both are at the current release for both, OS 26.1 using the Speed Test app to the same server. The Mac Mini got 486 down and the iPhone got 363 down. I wish I could connect my Mac with ethernet to the router but to do that I would have to move everything close to the router which is high up on a shelf in a closet. It's high on the shelf with no obstructions except the wall like I said.
- FURRYe38Guru - Experienced User
Be sure that the devices are connected at the RBR, I'd turn off the RBS and some devices can remain connected to the distant RBS if they had been connected there while place near the RBR.
One can get inexpensive USB to ethernet adapters from Amazon.
Wireless can be slower than ethernet and most times it will be. Some devices are only 2x2 MIMO supporting so seen speeds past 500Mbp +- maybe a limited to that bandwidth support. Devices that have 4x4 MIMO can get well over 500Mpbs and should see up or past 1Gb.
Those are good speeds for general stuff.
- sks1234Aspirant
I spoke too soon. Back to speeds around 400-500 down. The speeds I'm quoting are all from standing right next to the RBR.
- FURRYe38Guru - Experienced User
What are ethernet connected speeds showing?
What wireless devices are you using to speed test with?
sks1234 wrote:
I spoke too soon. Back to speeds around 400-500 down. The speeds I'm quoting are all from standing right next to the RBR.
- sks1234Aspirant
I have IPv6 disabled on the RBR and my FW version is V7.2.6.31_5.0.24. I also forgot to mention that both the modem and RBR have been unplugged and restarted.
I'm already setup with option #2, all the wifi radios are disabled and I am in passthrough mode and my Orbi is in router mode.
One thing I did change on a recommendation from a AT&T article was to use DHCP-dynamic instead of fixed. That did seem to help a little bit as I started to get more consistent speed hitting 800 Mbps.
- FURRYe38Guru - Experienced User
Is IPv6 enabled on the RBR?
What FW version is loaded on the RBR?
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.Static IP Address Configuration for AP Mode | NETGEAR Communities
Try option #2 first...