I have a server that is set up to listen to a specific port (1433), and normally there is no problem accessing that port from anywhere. From one of the locations I work, however, I can't connect to that port specifically. No problems with other ports like 80, 443 or 22, just that one.
I suspect the ISP or the local router (to which I have no easy access), but in order to troubleshoot I'd like to pinpoint the culprit. Is there a tool that could help me see where in the route the port is blocked, kind of like
traceroute but port-specific?