WDTV Live Plus is loosing network shares

Hi All

I have an small problem but very irritating.

I have a mini ITX PC  with all my movies and tv shows running on Windows 7 Professional. I´ve shared c:\Mediacenter folder. My wdtv live plus read the file from there and everything is as expected.

The thing is that every 2 or 3 days, wdtv stop to see the network shared. I tested the shared and is visible from other pcs from the network.

I tried to stop sharing the folder and start again and is the same, i cannot recover it from my wdtv.

The only one thing that fix the issue is to reboot the PC and everything go fine again.

I made an script to reboot the maching every 2 days but is irritating because maybe i´m downloading something and is interrupted.

Do you know what could be the problem?

Thank you very much for your help

Did you update W7 to SP1? It has been confirmed that W7 is breaking network shares _ randomly _ after the update. It was discussed for a while in here thinking it was the WDTV until testing revealed that the problem is actually SP1.