Orbi 9 series problem

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?
Be sure your using a good quality LAN cable between the modem and router. CAT6 ir 6A STP is recommended. 

Are you speed testing with a wired PC or wireless? 

What is the distance between the router and 📡 satellite(s)? 30 feet or more is recommended in between RBR and RBS📡 to begin with depending upon building materials when wirelessly connected.
https://kb.netgear.com/31029/Where-should-I-place-my-Orbi-satellite 📡

For that size of home, having 3 RBS deployed maybe too much. You might try just the RBR and 1 RBS.

Too Much Wifi: https://youtu.be/UR0viMLISz4

Basement is not a recommended location for the RBR. Main or 2nd level is recommended. 

Do you have the IoT and separate 6ghz radio enabled? 

What channels are you using? Auto? Try Auto and 48 on 5Ghz. Or try setting manual channel 1, 6 or 11 on 2.4Ghz and 40 to 48 channel on 5Ghz.
Any Wifi Neighbors near by? If so, how many?

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Halvorho wrote:
Hello, we have a 3-storey house and I bought the Netgear Orbi 964.

I have a router in the basement (plugged in with cable) and 2 satellites on the first floor and 1 satellite on the 2nd floor.

The house is approximately 100 m2 per floor on the ground floor.

I have a 1000 Mbit fiber line.

I only get 150 Mbit out of the router? The internet is very unstable (it was stable with my old router)

I am unable to update the router, see image below.

In addition, the router in the basement connects to the satellite on the second floor (not first floor), and from there to the first floor, even though the router and satellite on the first and second floors are directly above each other, see below.

Hope you can help.

Looking forward to hearing from you.

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