BOSTON (CBS) — After being down for about three hours Sunday night, internet service provided by Comcast is back up in Massachusetts.

Comcast spokesperson Marc Goodman apologized for the outage. He said that engineers identified a server issue and worked to restore service as quickly as possible.

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Internet service was down from approximately 8 p.m. to 11 p.m. Sunday. Video and phone services were not affected.

WBZ News Radio Kim Tunnicliffe reports.

Goodman said that some customers may need to turn off, unplug and then restart their modems to reset and refresh settings.

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The outage spread throughout the eastern seaboard from New Hampshire to Washington, D.C.

Some Comcast customers contacted WBZ commenting on the issue. Bonita Noviello wrote from Everett, “In spite of calls to Comcast, it was impossible to make contact to either report or ask for an estimation of time for service to resume. The call basically stated that for faster service you could call back later or contact them via their website.”

Goodman said engineers are now looking for the root cause of the problem to ensure that it does not happen again.

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The company said that credits would be handled on a case by case basis.