My mate emailed me this query and so far I've been unable to help him. 
Anyone able to offer some help?

Cheers

Steven.

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Got a Pinnacle Soundbridge as Xmas present and have set up wireless network 
around house which works quite well will PS3.

Problem is that the Soundbridge will pick up the boys computer and I can 
play all the files on it, (both desktops are wired to the router (using a 
D-link DSL-G624T) the Soundbridge scans well and even picks up other 
networks in the building but will only sense my desktop music server when I 
use a USB wireless adapter connected to the desktop,(seems to defeat the 
idea of a wireless network as this is connected to a wireless router 
anyway!)the boys Pc is sensed by the Soundbridge always and without a USB 
adapter.

Have compared both configurations,changed firewall settings on my Pc and the 
routers,checked all the WMP settings and forums. Have asked Pinnacle and 
D-link help centres,both tell me it's the opposite problem.Do you have any 
suggestions as just about giving up. The Soundbridge internet radio works 
well on it's own off the router so have assumed has a clear connection to 
this at all times and router is not problem.