No authentication popup when mounting a network volume.

You will need to assign a network drive or add Windows credentials in the Credentials Manager. 

To add credentials, go to "Control Panel" > "User Accounts" > "Credential Manager" > "Windows Credentials" > "Add Windows Credentials".

Credential Manager" can also be opened by executing "control.exe /name Microsoft.CredentialManager" in "Run as".

Please add the correct credentials from Add Windows Credentials.