The issue: you have multiple computers on a network connected to a router, but are denied access to your workgroup.
The problem: when you turn on the first computer on your network, McAfee's virus protection software on that computer takes control of your network. If McAfee's Firewall is not configured to trust other
computers on your network, it will not grant them permission to use the network.
The solution: You must configure McAfee Firewall to recognize and trust the other computers on the network.
Here's how to configure McAfee Firewall:
launch McAfee Security Center=>
select Internet & Networks=>
select Configure=>
in the "Firewall Protection is Enabled" panel, select Advanced=>
from the left hand menu, choose Networks=>
select ADD, then enter the IP Address range of all the computers on your network (eg. 199.188.1.100 to 199.188.1.104)
You can obtain the IP addresses for each computer by either clicking on the computers in McAfee's schematic of your network (from the main menu in the McAfee Security Center, select Manage Network to see the schematic, then click each station to see info) or by launching the your system Command Prompt and entering "ipconfig /all" which will display your computer's IP address).
All of your computers should now be able to access shared files anywhere on your network.
