Get-WSUSServer Authorization Error

PS C:\Windows\system32> Enter-PSSession -ComputerName 10.26.40.3 -Credential $Credentials
Enter-PSSession : Connecting to remote server 172.16.96.3 failed with the following error message : The WinRM client
cannot process the request. Default authentication may be used with an IP address under the following conditions: the
transport is HTTPS or the destination is in the TrustedHosts list, and explicit credentials are provided. Use
winrm.cmd to configure TrustedHosts. Note that computers in the TrustedHosts list might not be authenticated. For more
information on how to set TrustedHosts run the following command: winrm help config. For more information, see the
about_Remote_Troubleshooting Help topic.
At line:1 char:1
+ Enter-PSSession -ComputerName 172.16.96.3 -Credential $Credentials
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidArgument: (172.16.96.3:String) [Enter-PSSession], PSRemotingTransportException
    + FullyQualifiedErrorId : CreateRemoteRunspaceFailed

PS C:\Windows\system32> Get-Item WSMan:\localhost\Client\TrustedHosts


   WSManConfig: Microsoft.WSMan.Management\WSMan::localhost\Client

Type            Name                           SourceOfValue   Value
----            ----                           -------------   -----
System.String   TrustedHosts                                   172.16.96.3