Comcast Twitter - Chicago, Northwest Indiana and Southwest Michigan were being affected by a Comcast Internet outage late Sunday night according to a rash of complaints on Twitter and confirmation from Comcast officials.
The outage of high-speed Internet started at 7:30 p.m. and the cause is being investigated, though no timeframe for a repair was offered.
The ComcastCares Twitter account stated that there was a problem with Comcast DNS servers, similar to an outage affecting the Northeast on November 29. A temporary workaround recommended users change their DNS servers to the Google 22.214.171.124 setting, explained further here.
Cable and phone service were not affected.