said by tbk5 
I am also working a firewall or router issue. I get the "HDHomeRun Setup detected the PC is not receiving UPnP discovery announcement packets from the network." I can find anything online wrt Win8.
[/BQUOTE :Your already getting the clearQAM stations(which will end soon), and its likely that you need to add an exception in your windows firewall in windows 8 to allow the HDHR to connect to it. I am unsure how to do this in windows 8, but I know it works well in windows 7. Im getting myself an HDHRP soon so that we do not have to pay for a DVR service. Have a nice HTPC set for it already, and its smaller than the charter provided DVR.
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