Hi there, alak. We usually only refer you to modem manufacturers when we suspect that there is a specific modem issue, which is normally once we've been able to confirm the signal getting to the modem is fine. Either way, if you're having internet trouble I'd like to help. Please send me a PM with your first and last name and I can take a look at your account.
To send a private message, please click my name "ComcastMorgan" then select "Send a Message" on the right side.