You can recover from inability to connect to the remote server.
If you get this error, carefully check the URL, particularly the associated port number, that you are using to connect to Content Platform Engine. Also make sure that Content Platform Engine is running.
If the user is running Administration Console for Content Platform Engine and following the directions in the Cross-realm Kerberos authentication section, this error can also arise if the Content Platform Engine system is not a member of the SPN identity user account's domain. For example, if the Content Platform Engine system is in a Windows workgroup or a UNIX system and named myce01 and the SPN identity account is in the mydom.example.com domain, then the URL that Administration Console for Content Platform Engine would need could be something like http://myce01.mydom.example.com:9080/wsi/FNCEWS4MTOM. This would fail because myce01 is not really in mydom.example.com domain, but that URL needs to be that for cross-domain requirements. The solution is to manually add myce01.mydom.example.com to the DNS used by the clients.