Troubleshooting Wired Connections
Filters -
Bad, incorrectly installed, or missing filters can adversely impact your quality of service. For more information on how to correctly install filters, see the filter illustration or the Filter Setup tutorial.
Damaged phone cord/phone jack to the modem -
If the phone cable between the modem and phone jack is too long (make sure to use the cord provided with your modem), loose, or damaged, it may impede or degrade your connection.
Inside/Outside wiring and interference -
Anything from poor inside/outside wiring, bad weather, power outages, and electromagnetic/radio interference. You can isolate your inside wiring by using the Test NID (dmarc) tutorial.
Browser Health -
Clearing your computers cache can improve your browsing experience. For instructions on how to clear cache, go to Browsers > Select your browser > Clear Cache.
Computer Health -
Computer health can cause your computer to run slow. Get a PC Health Check - PC diagnostic and security scans. A virus or worm on your computer or network can cause your computer and the modem to lock up or frequently restart. See our Security page for more information about Malicious Software.
Outdated firmware/drivers -
The software that controls your modem or computer may not be as reliable as newer versions, especially if the technology utilizing it changes. For help updating your modems firmware, go to Modem Firmware.
Power spikes -
Faulty power strips can cause inconsistent power resulting in frequent disconnects and modem restarts.
Rebooting your modem -
Can help resolve connectivity or slow internet speed problems. CenturyLink can trigger a reboot of your modem.
NOTE: You will lose your internet connection completely while your modem is rebooting.
NOTE: You will lose your internet connection completely while your modem is rebooting.

