said by Tryggr :
I've actually answered this a couple of times. The dns servers belong to Comcast, I believe. They are 68.87.91.135 and the backup is 68.87.64.140. And yes, I can ping known ip's and I can also ping by common name. Both from my router and from my PC
And those I believe would be the servers that you get when you are in the walled garden. You can find a complete list of normal DNS servers at »
dns.comcast.net/.
Are you absolutely sure your router is not configured manually to use those DNS servers?