See if this helps.
1. Download and save the Network Cleanup Tool (mcnetcln.exe) to the desktop of each computer using the following link:
http://download.mcafee.com/products/licensed/cust_support_patches/mcnetcln.exe 2. Disconnect the computers from each other by powering off (or unplugging the power cord from) your network router or switch.
3. Run the Network Cleanup Tool on each computer on your network that was previously managed by McAfee.
Note: This tool cleans up incorrect, cached network information on each computer.
4. Power on (or plug in) your network router.
5. Restart the computer that you want to designate as the administrator of your network.
6. On the administrator computer, open the McAfee SecurityCenter and then click Manage Network.
Note: This computer automatically becomes the administrator on the managed network.
7. If prompted, choose to Trust the Network.
8. Restart the other computers on your network, and if prompted, select Trust the Network.
9. On the administrator computer, invite the other computers to join the managed network.