I've have added my domain account permissions to Windows AppFabric 1.1 Caching using the "grant" Powershell command. A sample app runs locally on the machine itself fine. Also, I'm able to telnet to the port 22233 from another box successfully (I'm pretty sure its not firewall issue).
Could this be IIS permissions somehow? I don't see a site created under IIS. Is there a log I can check to see specifically why the remote calls are getting rejected with a "ErrorCode:SubStatus:There is a temporary failure. Please retry later."