Unidentified Network while using network bridge

> So I have a laptop w/ wireless (using XP Professional) and a desktop (using
> Vista Ultimate). My laptop connects to my router thru wireless, and it
> connects to my desktop thru a ethernet cable. I bridged my wireless and
> ethernet connection on my laptop in order to connect my desktop to internet
> wirelessly. This method works fine for several weeks, until one day it
> suddenly stops working. No matter how I disconnect and reconnect everything,
> reset my router, disable/re-enable network adaptor, the desktop still showing
> me that it has connected to a unidentified network (public) with local area
> connection (sometimes it showed limited connection as well). However,
> sometimes my desktop has 2 connections: one is unidentified and another one
> is the normal connection I would get if I successfully connected to the
> internet. During this situation, even though my desktop can't connect to the
> internet, I have access to my router.
>
> I have tried my best to describe the situation, I sincerely hope that
> someone could help me here.
>
> p.s.: my laptop could access internet thru wireless normally

> What firewall/av are you using on all PCs?
> --
> Regards
> Bob J
> If advise given from anyone, solves problem or not, or if solved from
> another source,post back & let us know.
> Then we all benefit.
>
>
>
> "pacmanwu" wrote:
>

> > So I have a laptop w/ wireless (using XP Professional) and a desktop (using
> > Vista Ultimate). My laptop connects to my router thru wireless, and it
> > connects to my desktop thru a ethernet cable. I bridged my wireless and
> > ethernet connection on my laptop in order to connect my desktop to internet
> > wirelessly. This method works fine for several weeks, until one day it
> > suddenly stops working. No matter how I disconnect and reconnect everything,
> > reset my router, disable/re-enable network adaptor, the desktop still showing
> > me that it has connected to a unidentified network (public) with local area
> > connection (sometimes it showed limited connection as well). However,
> > sometimes my desktop has 2 connections: one is unidentified and another one
> > is the normal connection I would get if I successfully connected to the
> > internet. During this situation, even though my desktop can't connect to the
> > internet, I have access to my router.
> >
> > I have tried my best to describe the situation, I sincerely hope that
> > someone could help me here.
> >
> > p.s.: my laptop could access internet thru wireless normally