The shared folder of the NAS that was connected by upgrading or updating to Windows 10 says "The specified network name cannot be used.。I received help with the content that it became inaccessible。
A common problem is a Windows credential failure that can be fixed by re-registering, but this time it was different.。
Some computers are displayed and some are not displayed when looking at computers on the network.、The IP address passes, but the shared folder cannot be accessed.。
In such a case, check "SMB 1.0 / CIFS file sharing support"。
Since the outage of this "SMB 1.0 / CIFS file sharing support" has been introduced as a countermeasure for WannaCry, I unknowingly disabled "SMB 1.0 / CIFS file sharing support". May be。
"Control Panel"-> "Programs and Features"-> "Turn Windows features on or off"
Check "Support for SMB 1.0 / CIFS file sharing" in this and restart the PC.。