They are wired and can access the Internet. it is a "home or work."
The file and printer sharing is set right, as when I reboot, everything works fine.
I got another suggestion to make sure the network cards were not powered down when the boxes go to sleep. I did not know you could set that. I made the change and that seems to be working so far.
I'm not sure why I have had more problems with it lately, but it does seem to maintain connection with this change.
Thanks,
Steve