We reported on this type of problem back in November. A problem with domain name servers may be negatively affecting Comcast internet customers.

Four days ago, a broad DNS attack was reported that hit the sites of UPS, Acer, and others in a coordinated attack that may have been carried out by Turkish hackers. That was a hack on the NetNames DNS provider.

TechCrunch.com also reported at 11:30 p.m. Thursday that Microsoft services, including Hotmail, SkyDrive, and Office 365 were all down because of a DNS problem. Service was restored about four hours later.

Tonight, some Comcast customers in Boston have reported that “the lights are on” on their cable modem, but websites will not load. Changing the DNS servers on your router and/or computer to Google’s public DNS ( and as secondary) just as we recommended in November, seemed to fix the problem. Make sure you restart your computer or other device before trying to get back online.

Are you having/did you have Internet problems? Let us know where/when by commenting on this story!

About The Author

John Guilfoil is the editor-in-chief of Blast: Boston's Online Magazine and the Blast Magazine Network. He can be reached at [email protected]. Tweet @johnguilfoil.

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