[Live] Remote Server failed connection

Hi, I installed the last Live version a few months ago. All the shares haves been working. My Desktop works as a server under Win 7 and I share all my media from there. On my leaving room I have an Acer Revo with Live XBMC.

I didn't do anything either on my Desktop or Revo and today I cannot seem to access my shares. I have internet connection. This is very annoying. I checked my shares in the desktop and they are working.

Also tried to add news sources and it seems as if he is out of the network and doesn't find anything and displays the same error that he couldn't connect to the remote server.

Just an update I'm trying to connect to the revo via winscp and no luck. I changed port on my network (could be a problem of the router) but no go. I'm guessing some update on xbmc lead to this its the only explanation. Problem is for sure on the Revo.

Can someone help me out with urgency? Thanks