7.4.1 Connectivity issue discovered
Then I discovered the cause while playing WoW. It was my 5 ghz phones interfering with the signal. Now this was never an issue in any other version prior to 7.4.1. I never worried much about having 5 ghz phones because the 5 ghz spectrum has so many more channels in it, that this really shouldn't be an issue. So I turned off wide channels to see if that would help. It did not.
Solution, roll back to 7.3.x and the problem was gone. So something is different in 7.4.1 that causes it to have issues with my phones. Fortunetly apple makes it as easy to roll back as it is to upgrade.
Imac 2.16 Intel, Mac OS X (10.5.2)