That might be caused by the poor connectivity to Ledger servers due their overloading.
That's definitely not the case.
The nano does
not need any internet connection when initializing.
This has absolutely nothing to do with their server, but is either a system and/or hardware failure.
OP, are you using the same cable you used with the other nano?
The most common issues are a wrong usb cable (without data pins) and a faulty USB port. Can you exclude these two options?