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Forum Discussion
BlackBear51
Apr 28, 2026Tutor
Orbi RBK852 – Wired via Satellite drops from ~700 Mbps to ~50–80 Mbps until reboot
I’m trying to figure out an issue with my Orbi RBK852 setup. I have gigabit fiber (Verizon), and when everything is working properly I get around 600–700 Mbps up and down, which is great. The pro...
BlackBear51
Apr 28, 2026Tutor
Correct, the speed test I ran on my PC - I live near Philly and I ran the Orbi Speed Test as well as just a basic web speed test and got the following: Download: 97.80 Mbps and Upload: 93.32 Mbps. When I run a speed test on my phone in same office where my desktop is, I get: Download: 82.6, Upload: 90.7
CrimpOn
Apr 28, 2026Guru - Experienced User
BlackBear51 wrote:I ran the Orbi Speed Test as well as just a basic web speed test
The Orbi speed test runs on the router (no matter whether it is invoked using the web interface or the Orbi 'app'). If the router is seeing speed under 90Mbps, then any device connected to the system cannot possibly get a higher speed.
This puts attention on the Orbi-ISP link rather than on the router-satellite link.
Another bit of information to gather the next time this happens is to navigate to the web interface Advanced Tab and click on Show Statistics.
Next to the WAN port, does it say 1000M/Full or 100M/Full. ?
- BlackBear51Apr 28, 2026Tutor
WAN shows 100M/Full
- FURRYe38Apr 28, 2026Guru - Experienced User
Eeeks, thats not good.
What CAT# cable are you using? CAT6A STP is recommended.
Got a different cable you can try with?
You don't happen to have a 1Gb non managed LAN switch do you?
Has a power off for 1 minute then back ON with the ISP modem/ONT and router and satellite(s) been performed since last update?
Be sure to restart your network in this sequence:
Turn off and unplug modem.
Turn off router and computers.
Plug in and turn on modem. Wait 2 minutes for it to connect.
Turn on the router and wait 2 minutes for it to connect.
Turn on computers and rest of network.
- CrimpOnApr 28, 2026Guru - Experienced User
What a puzzle. That usually indicates some sort of problem with the Ethernet connection between router and ISP. (loose connection, imperfect crimp, damaged cable, loose pin in RJ45 connector, etc.) But, that does not support the idea that simply rebooting the router - and NOT TOUCHING ANYTHING can restore it to gigabit.
Very odd.