Hi NikTr
I dont know if by this time you solved your problem, gave up, or just bought something different.
In my case I have the WDTVLiveHub connected wireless with the DWA-131 to my home network (Router Netgear WGR612 v1 and a Macbook Pro) since the first day I installed it worked perfectly, no problems whatsoever, But since yesterday I cannot see it on my shared "devices" on my mac...
I connected "Wired" through the Router and I can used to transfer files, once I try to used Wireless is not working...
This is really pissing me off cause it was working properly for about 1 months and so...
Does anyone had face this problems... and how to solve it???