A:AnswerI purchased a Motorola AC1900, MT7711. about a month ago from Best Buy and so far it has been working perfectly well. The only problem I had was with Comcast getting them to set up the voice portion. They do not like you using a modem other than theirs apparently. I don't see any reason to change at the moment.
A:AnswerIt should be able to work with any cable internet service provider but you first need to check if its compatible with their service, you should not have any issues with Comcast.
A:AnswerI installed it myself in less than 10 minutes. I haven’t figured out how to change my password to something I can easily remember, though. I did not call Comcast for assistance.