New - RBR850 / RBS850 Firmware Version v4.6.3.9 Released

Ok so I took the plunge today. 
Downloaded v4 FW files. 

Orbi RBK853 system in AP Mode. 50% power. Channel 1 and 40.

Will be testing router mode this weekend at 100% power. 

Manually updated the RBS first then RBR lastly using MS Edge on wired Windows 10x64. 

Powered OFF the RBS then RBR for 30seconds or longer.

Powered ON the RBR and let it come back to ready. I noticed that the front LED seem to blink longer than expected though I had internet services already after my wired PC connected to the RBR. Logging in to the RBRs web page showed Internet was GOOD. Front LED turned OFF.

Powered on 1 RBS at a time. RBS seems to take a bit long to get synced up Wirelessly. 

I noticed that a Out Of Sync message was seen on the RBRs web page:

So I gave the RBS a few more minutes and eventually that status changed to GOOD on the RBRs web page. 

Orbi app:

I turned OFF the RBS and went to dinner and came back. 

Powered ON the RBS again one at a time and let them wirelessy sync succesfully. 

Plug in the ethernet cable into both and connected the other end to the RBR, one at a time. 

The status one the RBRs web page soon turned from 5G to Wired:

Orbi app:

This was about 30 minutes ago

I connected a Mac Book Pro via ethernet to each RBS and ran a speed test successfully. 

Typed this post while leaving the RBS online and connected via Ethernet and there still working on Ethernet backhaul in AP Mode.

I'll change this over tomorrow to router mode and see what happens.