ETHERNET NOT WORKING

Hey, Suddenly i was unable to connect to the internet. I have checked with my ISP and all is OK at their end. I have also used a new cable - no success.
I have checked that ethernet is ticked in network port configurations and that it is at the top of the list.
I'v even tried to make a new port. This didnt work either.
I'm stuck, and desperately need access to the internet when at home.
Please someone- help, apple want to charge me £35.00 and cannot guarentee success.
many thanks

You firstly need to determine where the problem lie. When you connect your Ethernet cable to your modem/router does the status change from red to orange or green. If it doesn't then try it with another cable. Again, if you have no luck try turning everything (and by everthing I mean EVERYTHING) off and see if you have any luck. Failing that try connecting your PowerBook to another Ethernet device. if the status changes then you have a modem/router issue. If it doesn't then you more than likely have a PowerBook Ethernet port issue.

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