Computer help needed due to lightening strike

Yep... lightning ran thru the phone into my computer and had to get a new basic network card (I guess that is what its called). It is right where Ethernet is connected. The computer guy could push on the little brass terminals and it would connect. He would let go and I would loose connection. My card was made by D-link if that helps any. When a bad storm comes rolling in I unhook the phone and power.