Error code

Windows ERROR_DEV_NOT_EXIST

WINDOWSERROR_DEV_NOT_EXIST
System Error Code· A POSIX/system errno returned when a system call fails.

What it means

The specified network resource or device is no longer available..

How to fix it

  1. Confirm the remote host is online and on the network.
  2. reconnect the mapped network drive with net use.
  3. check for a dropped VPN or Wi-Fi connection.
  4. verify the share still exists on the server.

Not affiliated with Windows. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.