Great one, even though I'd go for "How to check internet connection in C#" in favor of "How to PING Server in C#" - See Steve Maier's comment.
Oh, and a little prosaic text would be nice, too -> See[^] how I'd explain it.
Sorry for pointing towards my own tips - It's a personal thing that I like text around the Tip/Trick's code snippet, and yours is probably OK without the adjustments, too.
Veni, vidi, caecus | Everything summarizes to Assembly code
This will not help if you are working inside of a company with no internet access. Or if you do have access, it does not tell of the server can be reached. This can be a problem internally that a business can have. But this is a good way to tell of you have internet access.