How can I determine the type of connection a client computer has to the network?
Unfortunately, the more reliable methods are all pay-for-service systems; Akamai provides this type of connection speed and location mapping service, as does Quova and IP2Location. Some of them do allow a limited number of free queries through their website, but none of them allow free programmatic queries through an API. If you control the end computer, you can look at installing something like Sygate on each machine to track its connection type, and have it report back what kind of connection it’s on, but again, that’s a commercial/paid solution which can get relatively expensive if you have large numbers of machines you need to track. It’s definitely not an easy issue to tackle, I’m afraid. Best of luck with it!
