|Its specs say it has an integrated 'fast ethernet' connection. You can check in device manager and see if there's a problem with it. How is your cable modem connected?|
I'm thinking there's a lot of details that should have followed your first sentence--'Have been told by my ISP the network interface card in Emachine Mod T5026 has failed not allowing access to internet. Such as what problems are you having with it, how did they diagnose a bad card, etc.
Don't forget to preorder your Hatch green chili for this fall. Many vendors ship world-wide.