Comcast Corp. on Oct. 23 acknowledged “delaying” some subscriber Internet traffic, but said any roadblocks it puts up are temporary and intended to improve surfing for other users.

The statement was a response to an Associated Press report last week that detailed how the nation’s largest cable company was interfering with file sharing by some of its Internet subscribers. The AP also found that Comcast’s computers masqueraded as those of its users to interrupt file-sharing connections.