How do I know whether I’m connected to the wi-fi/internet? It seems as if my email gets updated immediately – but when I try to access something “out there” on the internet, I get ‘can’t connect’ errors.

There is a small icon in the upper left of the ipad screen — is that an indicator for the strength of the connection? It seems to alternate btwn just the dot being lit and the smallest of the half circle marks being lit

How is it that email gets updated when I can’t connect to the internet? (I hear beeps from my ipad even before I see new mail in Outlook).

Could the wi-fi signal in my office be that sporadic? What would make it fluctuate like that?