I Thought that same thing at first about the Windows updates so I backed them
all out and uninstalled and reinstalled Service Pac 2 all to no avail. Both
my machines are hardwired to the router. I have uninstalled and reinstalled
the network card with a new set of drivers downloaded from Dell, updated the
firmware on the router, and said a novena to the god of Windows, and worked
my way through PChucks sheets and nothing works. What I do know is something
keeps resetting my node to unknown from Hybrid in my resistry and the Net
commands show the machine is not part of the workgroup.

I continue to suspect it was something in the updates but I am baffled why
it only effected that one machine. I have installed all the updates on the
other machine and it still works like a charm.

If I stumble on the answer, I will be sure to post it here.



"Joseph Carrier" wrote:

> I can't offer much help, but am intrigued that we experienced almost the
> exact same thing at about the same time. There are some differences: I use
> XP (home edition) and I use a NetGear WGR614 v4 router.
>
> I don't know if these are different: my connection to the router is cable
> for the desktop and wireless for two laptops; the two laptops continue to
> see each other but so not see the desktop, and vice versa.)
>
> I can't say I've tried every diagnostic and technique, but I did try a lot
> of them without luck.
>
> Could our common problem have anything to do with Window XP Security Updates
> that were installed about two weeks ago? (I'm far from being a technician,
> so I don't know if such a thing is possible.)
>
> Six security updates were downloaded and installed on my desktop machine On
> October 16:
>
> KB896688 (a previous attempt to download this had failed on failed on
> October 14)
> KB900725
> KB905749
> KB905414
> KB901017
> KB902400
>
> Did you install one or more of these just before you lost your workgroup
> access?
>
>
> "greyboomer" <greyboomer@discussions.microsoft.com> wrote in message
> news:2343F314-CB65-47FB-90E7-9299A0BFCBE0@microsoft.com...
> >I have a 2 computer workgroup through a D-Link DI 624c router. All was
> >just
> > fine untill about 2 weeks ago when one machine suddenly stopped being able
> > to
> > access the other in the workgroup. The WAN access never changed and it
> > works
> > fine.
> > I have been through every diag. tool and technique I can find and
> > everything
> > reports back that I should not be having this problem, however I am. The
> > only flaw I can find is when I use the Net View command. It searches for
> > a
> > while and then reports back with a 121 error (semaphore). Anybody have a
> > clue for me on this one?
>
>