I can logon to the internet as a guest but when I try to logon from administartor user I cannot get on. This is wireless access. There is a circle at the right of the ath the icon of the two little computer at the right of the screen when I click on it turns into a yellow diamond shape with an exclamation mark. What do I need to do.

Sounds like your settings have been changed. You might have to create a new usser and make sure it has admin access.