[bluedino]

The other problem with using your ISP's DNS severs is they can hijack your request, or be slow/down all the time. 4/5 when the "internet doesn't work" it's just the cable company DNS not working and using Google or OpenDNS "restore service"

[x0]

This is true, earlier this morning my ISP's secondary DNS server for my state was down. Good thing I roll with my ISP's main server first, and 8.8.8.8 as my secondary nameserver.

[RKearney]

They're your ISP, so they can hijack any IP they want if they felt inclined to do so.