Checking your internet information, ie IP address, Router Address (Default Gateway) and Subnet Mask, can be a very important step in diagnosing an internet network.
To check all of this information in Windows, open the command prompt (Start -> Run -> cmd) and type “/ipconfig /all”. This will present you with a screen of information that tells you all of the information you need to know about your internet connection.
In Mac OS X, open your Network Preferences (Applications -> System Preferences -> Network). Then click “Advanced” -> then the “TCP/IP” tab on top. This screen will show you all of the information you need.
Checking these numbers is the first step in the door to learning how to fix a large number of network related problems, so being able to tell your IT professional these numbers will greatly help them out.
Keep a straight head,