If you get an error 53 when trying to mount an Azure File Share, you got two main issues that might be causing it.
Port 445 is blocked
To check the effettive connection, and start the troubleshooter, run the following:
login-azaccount
$ResourceGroupName = "ba-weu-wvd-rg"
$StorageAccountName = "baweufslogixsa"
$storageAccount = Get-AzStorageAccount -ResourceGroupName $resourceGroupName -Name $storageAccountName
Test-NetConnection -ComputerName ([System.Uri]::new($storageAccount.Context.FileEndPoint).Host) -Port 445
If the error is, on the other hand, NTLMv2 is not enabled, please note that Azure files only supports NTLMv2 (not v1). Set the value of the following key to 3 on your local PC/Server:
HKLM\SYSTEM\CurrentControlSet\Control\Lsa > LmCompatibilityLevel
Azvise 