RBR750 updated to new firmware, RBS750 not auto-updating. Unable to manually log into satellites.

Is it possible to access the satellite web pages using a blank password (as on the router)?

Although it is not possible to log directly into each satellite web page (my preferred method for updating satellite firmware), what happens when using the router Firmware Update and selecting the Manual tab?

As long as it is possible to access the admin web site on the Orbi without a password, it might be a good idea to save a copy of the config before things get worse.  There is a tool that will decode the config file into plain text.

https://github.com/Fysac/orbicfg 

Sorting the text output will reveal the key information for a factory reset: the entries in the LAN Setup table.  There is one entry for each device that look like this:

reservation1=192.168.1.2 20:25:64:0F:BA:xx    Mikes HP
reservation10=192.168.1.11 E0:37:BF:AB:F5:xx  Sony Blu Ray DVD
reservation11=192.168.1.12 B8:C7:5D:52:02:xx  Teds iPod
reservation12=192.168.1.13 54:62:E2:36:94:xx  Teds iPad
reservation13=192.168.1.14 A0:18:28:B5:D3:xx  Ted iPhone
reservation14=192.168.1.15 30:AE:A4:6C:C8:xx  Simplisafe Base Unit
reservation15=192.168.1.16 DC:A2:66:28:E2:xx  Family Room TV
reservation16=192.168.1.17 DC:0E:A1:BB:6D:xx  John Acer Ethernet
reservation17=192.168.1.18 84:4B:F5:0A:DA:xx  Linux Mint WiFi
reservation18=192.168.1.19 38:78:62:07:07:xx  Bills Sony Phone
reservation19=192.168.1.27 B8:27:EB:40:F4:xx  Mark Linux Pi ether
reservation2=192.168.1.3 20:25:64:0E:1A:D2:xx Teds HP
reservation20=192.168.1.28 B8:27:EB:15:A1:xx  Bills Linux Pi WiFi

 When I get truly desperate and have reached the end of my options and have to do a factory reset, I use this information to set up the device reservations before changing the WiFi SSID/password to the desired values.  This keeps my WiFi devices from connecting to the Orbi and getting random IP assignments before the system is 'ready' for them.  (Because I have been disorganized when adding devices, I usually take this occasion to enter them into the LAN Setup table in order by IP address.