Every once in a while (it doesn’t happen very often) DNS servers would stop resolving certain domains causing intermittent issues when accessing the Internet. To solve the DNS issues, I often switch DNS servers on my main router. Changing DNS servers may require rebooting your router.

So, here’s a list of DNS servers you could use on your router, in case the current DNS servers you are using is having problems. I primarily use OpenDNS and Google DNS servers, but others DNS servers are reliable as well.

OpenDNS

208.67.222.222 Primary
208.67.220.220 Secondary

Google

8.8.8.8 Primary
8.8.4.4 Secondary

Comcast

75.75.75.75 Primary
75.75.76.76 Secondary

AT&T DSL

68.94.156.1 Primary
68.94.157.1 Secondary

UltraDNS

156.154.70.1 Primary
156.154.71.1 Secondary

ScrubIt

67.138.54.100 Primary
207.225.209.66 Secondary

DNSResolvers

205.210.42.205 Primary
64.68.200.200 Secondary