Help Broadband Has Stopped working need a guide

[spidross01]

Hi

Just a quick question my friend has got a cable modem broadband setup. He has been using it for awhile and all has been fine. until yesterday when it went wrong and stopped working! Have been round and had a look, all the lights that should be on are on, have switched it off reset it etc and done all the things that the phone techs normally tell you to do but still no joy. Before i phone the tech line and sit in a queue for an hour and also prompt them to look at my account to find out i haen't been charged a penny for their broadband service for the last year or so (although that could be the reason it has gone down but the service lights are on!!)

Is there anything else i need to check. the computer is saying limited connectivity and to resolve this try and repair it. Have done this but it is saying it fails to get an ip address.

Could you also help me by reminding some of the commands in the command prompt window, the only one i can ever is ipconfig which tells me the ip address but i thought or seem to recall that thre were others. For example how do i ping website to check it is working etc?? Don't know if i have explained myself to well but hopefully i have, any thing i need to add let me know and i'll try and answer sharpish and thanks in advance for any replies