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Orbi recently became very slow.
We have been having ~115M-120M speeds on my Orbi up until the past week or so. Now I am seeing ~20M max and a TON of timed out connections. The speed is poor on both wireless and wired connections....
What is the Mfr and model# of the ISP modem the NG router is connected too?
After doing a FW update, was the ISP modem and Orbi system powered OFF for 1 minute, then power on the modem and let it sync, then power on the Orbi router then satellite and try a speed test via wired PC?
Is QoS enabled on the Orbi router?
What is the distance between the router and satellite(s)? 30 feet is recommended in between them to begin with depending upon building materials.
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:
MIMO, Daisy Chain, Fast Roaming, IPv6 and Set 20/40Mhz Coexistence to 40Mhz only. Save settings and reboot the router and satellite(s).
You may need to do a factory reset on the system and setup from scratch as a last resort.
What is the Mfr and model# of the ISP modem the NG router is connected too?
Arris SB6183 Surfboard
After doing a FW update, was the ISP modem and Orbi system powered OFF for 1 minute, then power on the modem and let it sync, then power on the Orbi router then satellite and try a speed test via wired PC?
The cable modem was, the Orbi was not. I only powered the Orbi off when testing with the 2.1.4.10 firmware. I will try this once I finish this reponse.
Is QoS enabled on the Orbi router?
Both "Enable WMM (Wi-Fi multimedia) settings" and "Enable Upstream QoS (Optimized for Gaming)" are enabled.
What is the distance between the router and satellite(s)? 30 feet is recommended in between them to begin with depending upon building materials.
All this testing was done on an ethernet wire, not on wireless. I intentionally avoided wireless tests to rule out Wi-Fi related sources like dead spots, materials, etc. When I do the test on my Galaxy S9 sitting 3 feet from the Router (no obstructions of any kind), I get the same poor results.
What channels are you using? Auto? Try setting manual channel 1, 6 or 11 on 2.4Ghz and any unused channel on 5Ghz.
As already noted this was all done on a wire (Cat5E), not wirelessly. However to cover all the bases, on 2.4GHz Im using Auto and on 5GHz Im using channel 48 (unused). I will try the changes you suggest later if you think it relevant even though I'm using ethernet.
Any Wifi Neighbors near by? If so, how many?
There are 2 with Wi-Fi on. Both of them register signals of ~-85dB vs my Orbi at ~-40dB on 2.4GHz. No neighbors are on 5GHz.
Try disabling the following and see: MIMO, Daisy Chain, Fast Roaming, IPv6 and Set 20/40Mhz Coexistence to 40Mhz only. Save settings and reboot the router and satellite(s).
Thanks for the suggestions. I will try them after I redo the power cycle dance for a full minute on both the cable modem and the Orbi (all with Wi-Fi disabled entirely).