I recently installed Norton 360 on 3 of 4 computers on my network. Ever since, I cannot login into office 365 from any of the 3 computers with Norton. I can access office 365 from the computer without Norton (which means it is not the router) and via computers outside the network.
When I look at the Norton log after trying to login it says "Medium: unauthroized access blocked (See Registry Security Key). I have tried with another browser, clearled the cache etc, uninstalled Norton and I still can't login from any of these htree computers. I also spent over an hour with the Norton Secur tech support and he says it is not a norton problem. What to do?