Hi,

I'm having a problem with some users, my vb tools always check at the splash screen a response from a server with a simple:

Dim MyResult as string = oWebclient.DownloadString("www.mydomain.com/page.php")

This actually works for most users but in some clients the firewalls I think they block this call or bypass or something like that, I found that after telling the user to turn off the firewall everything works ok, now I have some users that according to them they don't have a firewall or they already disable and still they have the problem.

You can see from the image the error message they receive, so my question is do you know any kind of free tool that I can send to the user to maybe log what program or whatever is blocking the program to connect?



Thanks for your time!

Diego