In Windows 10, the shared folder of the old NAS says "The specified network name is not available.。』And become inaccessible。
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。 【確認方法】 『コントロールパネル』 → 『プログラムと機能』 → 『Windowsに機能の有効化または無効化』 この中の『SMB 1.0/CIFSファイル共有のサポート』のチェックをいれてPCを再起動します。