How To Connect Remotely From a WORKGROUP-Server Core (Server Manager)
ERROR : The WinRM client cannot process the request. If the authentication scheme is different from Kerberos, or if the client computer is not joined to a domain, then HTTPS transport must be used or the destination machine must be added to the TrustedHosts configuration setting. When the local computer is not in a domain, the following procedure is required for remoting. 1. Configure the computer for HTTPS transport or add the names of the remote computers to the TrustedHosts list on the local computer. For instructions, see "How to Add a Computer to the TrustedHosts List" below. 2. Verify that a password is set on the workgroup-based computer. If a password is not set or the password value is empty, you cannot run remote commands. ...