I had overlooked the worgroup name setting on the WRT610N which is hidden within the Storage\Adminstration section.
However, having now changed this setting to WORKGROUP and put all of my PCs into WORKGROUP , I am still experiencing exactly the same 30 minute network dropout as I was before. I have also verified with NETSTAT that WORKGROUP is the only registered NetBIOS group name.
So, my conclusion remains unaltered that there is still an underlying networking fault with the HDTV Live that occurs every 30 minutes when playing MP3s off an external media server which is NOT Windows related.
