Orbi repeatedly drops Internet after Firmware Update

[granvillea]

I have an Orbi RBR50 Router and 2 RBS50 Satellites configured with the Router in Center of Home and Satellites in 2 Directions from Router. I updated the Firmware today to V2.3.5.30 and now I am dropping internet connection repeatedly. I have turned off Daisy Chain since Router is in center with one satellite in each direction. I have further reset Router to Factory Settings. I have BRMEMC (Blue Ridge Mountain Electric Membership Co-operative) as my Fiber-Optic ISP. When it is working I still get 48 Megabit Internet Speed from each Orbi but they all drop Internet several times an hour. I have followed the various threads re similar issues but I am stuck at this point any other suggestions?

[granvillea]

In addition, I have checked with ISP and they show no issues and if I connect directly Sans Router I have no issues. I use OpenDNS and GoogleDNS as my DNS Servers and have set that each time I have Factory Reset the Orbi’s. I used the Orbi IOS App to update the Firmware on all three Orbi devices and the Router and 1 Satellite took the Firmware Update fine, the 2nd Satellite showed Update Failed on 1st try but showed ok on 2nd Attempt. That was only issue on update other than immediately creating the Dropping Internet Connection I am querying about.

[FURRYe38]

What is the Mfr and model# of the ISP modem the NG router is connected too?

What is the size of your home? Sq Ft?
What is the distance between the router and satellite(s)? 30 feet is recommended in between them to begin with depending upon building materials when wirelessly connected.

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 downloading the FW file for the RBS from NG  support site and manually install the FW file to the RBSs web page