I have a 1300 series Nuvi and never had any problems connecting to both Win 10 and Win 11.
The other old Nuvi you have works OK connecting to the PC?
I have only ever used Garmin USB cables when connecting any of my Garmin Units.
Never used the high speed usb port or a USB Hub.
Make sure you have the latest Garmin Express v7.16.3.0 is the latest.
Also look at your device Manager go to view and show hidden devices and go over all the items looking for a problem.
You can remove the driver or scan for a updated version.
If you have never used device Manager then take the time to look it up in the Internet.
You can also use the tool called USBDeview v3.06 it will show what USB items are connected.
There are other great tools on this site too......
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