In the folder you extracted WPP, there's a file called Options.xml. Can you post the contents of that file here? Feel free to redact your server names. Here's mine: (I changed my server name to WSUSSERVERNAME, for me, I needed to use the server's name, not 'localhost' to connect correctly. I feel that this may be your issue)
<WsusPackagePublisher>
<Server>
<Name>WSUSSERVERNAME</Name>
<IsLocal>True</IsLocal>
<Port>80</Port>
<UseSSL>False</UseSSL>
<IgnoreCertErrors>False</IgnoreCertErrors>
<DeadLineDaysSpan>0</DeadLineDaysSpan>
<DeadLineHour>0</DeadLineHour>
<DeadLineMinute>0</DeadLineMinute>
<VisibleInWsusConsole>LetMeChoose</VisibleInWsusConsole>
</Server>
</WsusPackagePublisher>