I installed sp3 on both a Dell desktop (older Pentium III) and a Dell
Laptop. Both computers have Norton Internet Security 2008. I connect to
the Internet thru a wired router. The installation on both completed
without error and I don't seem to have the predominate problems mentioned in
this newsgroup. While both computers can connect to the Internet, they are
no longer accessible or visible to each other. Previously I exchanged files
between the computers without difficulty. All file sharing settings are
active. The only evidence of any error during the installation is a
"Symantec resource Protector Alert":

Event Details:
Actor:
C:\WINDOWS\SOFTWAREDISTRIBUTION\DOWNLOAD\DD9AB5193 501484CF5E6884FA1D22F9E\UPDATE\FIXCCS.EXE
(PID=1380)
Target: \REGISTRY\MACHINE\SYSTEM\CurrentControlSet\Service s\Symantec Core
LC\$%&'()*+,-./0123$%&'()*+,-./0123$%&'()*+,-./0123$%&'()*+,-./0123$%&'()*+,-./0123$%&'()*+,-./0123$%&'()*+,-./0123$%&'()*+,-./0123$%&'()*+,-./0123$%&'()*+,-./0123$%&'()*+,-./0123$%&'()*+,-./012Unauthorized
access
Action: Unauthorized access
Reaction: Unauthorized access stopped

I have no idea how to proceed or what to check for to get LAN capabilities
back. Any help or advice would be greatly appreciated.
thanks
Jerry