Basic Auth over HTTPS from reports MI_RESULT_ACCESS_DENIED

[dantraMSFT]

With PowerShell version 6.1 preview and PSRP 1.4.2-2, attempting to create a new PSSession using Basic Authentication and -UseSSL reports error code 2 (MI_RESULT_ACCESS_DENIED)

Repro:
PS> $cred = Get-Credential username@hostname
PS> $session = New-PSSession -Computer -Credential $cred -Authentication Basic -UseSSL

Expected:
A PSSession is created.

Actual:
New-PSSession : [dantradesk] Connecting to remote server dantradesk failed with the following error message : Basic Authorization failed for user psrptest@dantradesk For more information, see the about_Remote_Troubleshooting Help topic.
At line:1 char:12

• $session = New-PSSession -ComputerName dantradesk -Credential $cred - ...

•        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  

• CategoryInfo : OpenError: (System.Manageme....RemoteRunspace:RemoteRunspace) [New-PSSession], PSRemotingTransportException
• FullyQualifiedErrorId : 2,PSSessionOpenFailed

[dantraMSFT]

Closing. The issue is with the username in the credential. Using a machine qualified user name, such as machinename\user or user@machinename is failing. Using an unqualified username succeeds.