Non-CenturyLink modems have not been tested with the CenturyLink network. CenturyLink highly recommends using one of our certified modems, which have been tested and approved to work optimally with our high-speed internet technology.
If you understand and accept these risks and would like to use a third-party modem, you will need to get support from the modem's manufacturer. Though there are some similarities across brands, it's best to get instructions specific to your particular model's features and settings. Go to the manufacturer website (popular examples could include Netgear, Motorola, D-Link, etc.) and search for the specific model name/number to find support manuals, help articles and customer service contact information.
You can also follow these general setup tips: