Yesterday i turned on my imac and went online my home page loaded fine but i couldnt load up certain websites like ebay so i tried other site and some worked and some didnt . i looked around to try and figure out the problem nothing helped . i found that when i click the renew dhcp lease the websites that wouldnt load would work for a few minutes and then say safari cant find server . im not using wireless internet i have a motorola cable modem.