Use the original Micro-USB cable. Some third-party "charging cables" do not have the data pins required for the PC to see the modem. Advanced Use Case: Firmware Maintenance Find so Hard to belive that there is not solution
Last updated: October 2025. Driver versions and links are accurate as of the publication date but may be superseded by Netgear. Always verify compatibility. ac78x netgear drivers version 4.3.00
Alternatively, use the button in Device Manager (if Windows saved a restore point). Use the original Micro-USB cable