I have a HR21-200 HD DVR and under network settings/network services I have it set to automatically assign the ports. This used to work fine up until the last 2 software updates. Now it never assigns the ports and if I try to set them manually it does but says it fails the connection test. Since the last 2 updates DirecTV2PC and MediaShare have either stopped working completely or, in the case of DirecTV2PC, only after a RBR. I was able to see my DVR on my network last night and when I checked today it had disappeared once again. What are network services used for? I know it isn't for the HD apps, YouTube or Pandora because these are all still working fine. Anyone else having these same issues? I would appreciate some suggestions as I have tried everything possible including resets, multiple RBRs and even powering down the DVR for a 1/2 hour. I had no problems until the software update that included the HD apps. Thanks!