I am having a time trying to get my DSM-520 to stay connected to my new Dell Windows Vista Ultimate machine. If I go to the available servers screen in the 520, you can see every 30 seconds that the 520 cannot find a sever. The condition lasts for maybe 2 or 3 seconds and then finds all of the available servers again. This happens if you are connected by hardwire or wireless. Along with the Vista machine I have an older XP and I also have the DNS-323 set up as a sever. I have followed the instructions to enable UPnP support and allow Media sharing. Am currently running Firmware revision 1.05 on the DSM-520 and 1.09 on the media Lounge software. Also have tried using Windows Media Player 11, Active-TV and windows media center as the server. The results are the same. No matter if there are several servers in the list or just one, the 520 will report no servers available every 30 seconds. I'm sure it's someting I've overlooked, but could use some help.
Thanks