Issue resolved. Please ignor thread. Will purchase competitive software. Can't waste any more time trying to get clunky software to work.
For two and one-half days I had the same problem of no Internet access after McAfee VirusScan update. None of the solutions in this thread worked (of those I could understand). Today I decided to uninstall the software, and immediately (!!!) had the Internet back. Am temporarily using a free antivirus program. Two questions:
1. Has McAfee found a permanent solution so that if I reinstall I won't have the same issue?
2. If not, recommendations for alternative antivirus software, whether free or paid?