Many a time have I needed to contact someone from outside the network in order to assist with network diagnostics. Maybe you need to ping a web server’s external interface but can’t do it internally……or maybe you need to test a new smtp mail server…..or you just setup ftp and need to prove someone wrong (because they say it’s something on your end)…oooooooor…….you need to run a security scan on your web server.
Go give the free tools as wormly (http://www.wormly.com/tools) a crack. Now there’s no need to ask for assistance from your unreliable buddies that work next door. By running these basic diagnostics tools, you should be able to deduce where the issue lies and move forward.