I have a DSM-750 and I have installed PlayOn and configured my user accounts for Netflix, Hulu, and Youtube. I cannot get any videos to play from any source. The following error message is displayed each time I try to play any video from PlayOn.
This file format is not supported.
The file you have attempted to play is not supported.
Please check the user manual for details of supported
file types.
The PC OS is Windows 7 Professional. Windows Firewall is disabled and there is no anti-virus software running. The DSM-750 has firmware version 1.02.09 running.