Some old devices (NAS, Printer) only support SMBv1.
Check state of SMB1
PS C:\WINDOWS\system32> Get-WindowsOptionalFeature -Online -FeatureName SMB* | select FeatureName,DisplayName,State FeatureName DisplayName State ----------- ----------- ----- SMB1Protocol SMB 1.0/CIFS File Sharing Support Disabled SMB1Protocol-Client SMB 1.0/CIFS Client Disabled SMB1Protocol-Server SMB 1.0/CIFS Server Disabled SMB1Protocol-Deprecation SMB 1.0/CIFS Automatic Removal Disabled SmbDirect SMB Direct Enabled PS C:\WINDOWS\system32>
Install SMB 1.0 Client on Microsoft Windows 10 using GUI. Remember to restart.
Install SMB 1.0 using Powershell (Runas Administrator)
PS C:\WINDOWS\system32> Enable-WindowsOptionalFeature -Online -FeatureName SMB1Protocol,SMB1Protocol-Client -NoRestart WARNING: Restart is suppressed because NoRestart is specified. Path : Online : True RestartNeeded : True PS C:\WINDOWS\system32>