Netwoking not working

Graham, In future please refrain from carrying out multiple topic postings on the same subject! You won't obtain an answer to your query any faster!. Please see your other posting (https://support.avg.com/answers?id=906b0000000DTI4AAO).
AVG Guru

Hi
Since putting AVG on our 3 work computers the networking does not work anymore.
For example programs that we used to share  such as the printer and other cannot be accessed by 2 of the computers. Any help will be appreciated.

Graham, In future please refrain from carrying out multiple topic postings on the same subject! You won't obtain an answer to your query any faster!. Please see your other posting (https://support.avg.com/answers?id=906b0000000DTI4AAO).
AVG Guru