|Pinging 127.0.0.1 is not completely useless. It does tell you if the IP/TCP stack is installed properly.|
The next stage is the got to command prompt and type ipconfig /all. That will give you all the information you need providing you know how to interpret it.
Ping the computers IP address, That will tell you if the network card is working correctly or not, that is if there is a meaningful IP address there is the first place.
The next thing is the gateway address and the DNS address.