Just to add....just cause you can ping it doesnt mean it is configured properly. It just means that it is on and DHCP is working. Were you having trouble accessing the internet when connected?
Really no problem, this is a old router that has worked fine for a year or so. Then beening a novice I did something wrong and messed it up. Tried to reprogram it and don't know what I am doing. Using DSL modem with Xp home os, and after several attempts could not get on line with the router connected. After playing a bit more asked for a IP address and now I am on line through the router connected. I have no idea if it is working or not.
The question is how do I know if it is doing it's job?
If your PC is connected to the router and the router is connected to your internet source (cable modem, DSL modem) and you can surf the web, then your router is doing its job.