Power supply issue with RBR850

It is not clear (to me) exactly what the point of the post is.  There is indeed a sense of urgency when working from home is involved. Using the power supply from the satellite would have enabled the router itself to remain in operation while a replacement power supply was obtained, perhaps from Amazon. Purchasing an entire 960 system "solved the problem".

Netgear's definition of compatible is not entirely helpful.  According to Netgear, the RBS850 satellite is not compatible with the RBR960 router.

https://kb.netgear.com/000065169/Which-Orbi-routers-and-satellites-are-compatible 

Just personally, I would have preferred that Netgear indicate with a footnote the reason for their conclusion.  My guess (and it's only a guess) is that the 960 system supports WiFi6E devices and the RBS850 does not.  Thus it does not provide the same capabilities in much the same way that the RBS40V and RBS50Y cannot function as "true satellites" on the AX models.

It might be worth investing $20 in a replacement power supply so that the old 850 system can be sold, given away, or kept as backup in case something happens to the 960.  (Or, perhaps return the 960?)