For what? 

Most modems are super easy to setup. Just call the ISP and give them the mac address for them to provision with. 

Or do you have a modem/router combo device? You posted in the SB6183 forum but don’t say what you have. 

Sorry I have combo

Which one

As you  had mentioned the modem is a combo device.. Could you help us with the model number of the modem? So, we can help you further with you’re queries