Help uninstall disabled network

I was cleaning up two of our computers.  I decided to uninstall old norton antivirus on them.  They are part of a 6 computer network.  I used CCleaner.  Now I am unable to see or connect to any of the other computers on the network.  However I can still share a database with a program that they use.  I can no longer use a shared printer.  No other changes were made only the Norton uninstall.  I hope someone can give me some help.  I saw where this was an issue a few years ago but could not find anything recent.  Thanks