Cannot ping pc with latest windows update

[pkg]

I have updated 2 windows 2000 pc's with the latest windows
updates. After updating, i can ping the router from both pc's
and go to the internet, but I cannot ping from one pc to the
other. I also cannot see computers in my network neighborhood.
When I click on "Computers Near Me", I get the following error.

"Workgroup is not accesible."
"The list of servers for this workgroup is not currently available"

All this was working fine before I got the latest updates
last night (2/15/04)

Any help would be appreciated.

Thanks

 

[Jeff]

any reply to this or any thoughts?... I have the same problem.... some
security thing, I think, but dunno what...