When I turn on my PC only one or two FIP’s will start up. They are all (6) connected to a seven port USB hub.
I then disconnect/connect the USB to the FIP one by one and then they start up. This is very annoying and hope you can help with this issue.
I actually changed the USB hub for another model but to no avail. I have a 3.5 AMP power supply to the USB hub and it IS a USB 2.0 Hub connected to a 2.0 port.
I think this is more a windows USB power saving issue encoutered often. i think there is a utility to automatically turn this power save feature of in the registries.
Saitek USB Power Management Disabler
Also, try the latest Logitech plugin for MSFS2020.
Latest Logitect Plug in
Thank you so much, it worked like a dream.
It’s so nice not having to disconnect/connect all the FIP everytime I power up.
You are my hero 
Glad it helped!
Has Logitech released a plugin for the FIPS as well?
The same recent plugin update on the Logitech support site if for the FIPS as well as the other panels.
There is only one plugin.
" Adds support for all Logitech Flight Panels (Instrument, Switch, Multi and Radio) into Microsoft Flight Simulator"
Are you on win 10 or 8?
Windows 10 Pro.