RBR20 slow connection to PC (Ethernet & WIFI)

[Efdo]

Hi - struggling with the following problem:

I have gig service from Rogers, with a Hitron Coda-4582 modem/router.  I have disabled the gateway function.

Have a wired connection going from the Hirtron to the RBR20, firmware V2.3.5.30, in router mode.

Then a wired connection from the RBR20 to a d-link 8 port switch.

The PC is then wired into the d-link

All lights indicated Gig connections.   Network adapter in PC is a Realtek PCIe GBE Family Controller - it shows 1.0 Gbps under status.

Speedtest.net showing download 14-16 Mbps, upload 25-30 Mbps.  (similar speeds happens if I switch the PC to WIFI)

If I skip the d-link switch and connect the PC directly to the RBR20, same slow speeds

The kicker is - If I connect the PC directly into the Hitron modem I get 900-950 Mbps download, without changing any setting or rebooting anything.  Also - all my wireless devices are fine...my iPhone X regularly gets 350+ Mbps speeds.

Have rebooted dozens of times.  I'm convinced everything worked when I first bought the Orbi.  Noticed the slower speeds since working from home the last couple of weeks.

[FURRYe38 · Accepted solution]

Power OFF the ISP modem for 30 seconds, then back ON.

Factory reset the RBR and setup from scratch, walk thru the setup wizard.

Has a factory reset and setup from scratch been performed since last FW update? 
https://kb.netgear.com/31486/How-do-I-reset-my-Orbi-system-to-factory-default-settings
https://www.youtube.com/watch?v=ePZSc7vnRlQ

Be sure to NOT enable Circle or Armor or QoS or Traffic Meter. 

Test the speed using Ooklas installable speed test app on your PC. 

Try a different PC to compare speeds as well. 

[FURRYe38 · Accepted solution]

Power OFF the ISP modem for 30 seconds, then back ON.

Factory reset the RBR and setup from scratch, walk thru the setup wizard.

Has a factory reset and setup from scratch been performed since last FW update? 
https://kb.netgear.com/31486/How-do-I-reset-my-Orbi-system-to-factory-default-settings
https://www.youtube.com/watch?v=ePZSc7vnRlQ

Be sure to NOT enable Circle or Armor or QoS or Traffic Meter. 

Test the speed using Ooklas installable speed test app on your PC. 

Try a different PC to compare speeds as well. 

[Efdo]

OK - so did the factory reset and things look better; however, I do not see a QOS selection in the Orbi menu (everything else is disabled Circle, Armor & Traffic meter).

I tried both the webpage and app versions of speedtest:

APP:

• Ping: 13ms / Download: 934Mbps / Upload 27Mbps

Webpage:

• First try, Ping: 5ms / Download: 15Mbps / Upload 23Mbps
• Second try, Ping: 10ms / Download: 884Mbps / Upload 27Mbps
• Third try & subsequent, Ping: 5ms / Download: 13Mbps / Upload 26Mbps

Loading websites definitely happening faster...so thank you!

[FURRYe38]

Glad the reset worked.

Enjoy.