Some Internet customers of Knology were unable to get online or experienced delays during a two-hour period Thursday afternoon.

Rod Kutemeier, general manager of Knology, said the connection with one of the company’s three Internet backbone providers went down briefly.

The disruption occurred approximately between noon and 2 p.m. Kutemeier said he didn’t know the cause of the problem. The provider, whom he declined to identify, was preparing a report for Knology, he said.

He said the disruption was “not common and we don’t expect to see it again.” He said he didn’t know how many people were affected by the down time.