CenturyLink internet can fail because of a local outage, modem state, loose DSL or fiber cabling, missing filters, or a line issue. Start by finding out whether the problem is in your home or on CenturyLink’s side.
Does this affect you?
Use this for CenturyLink DSL or fiber with CenturyLink-provided modems and gateways such as C3000A, C4000XG, and EAGLE Pro AI.
Check for an outage
Use cellular data if your Wi-Fi is down.
- Open the My CenturyLink app or CenturyLink outage page.
- Sign in and look for an outage banner for your account or address.
- Use the automated phone outage check if you cannot access the app.
- Check reports from other users nearby as a secondary clue.
- If an outage is confirmed, wait for restoration rather than resetting repeatedly.
Restart the modem correctly
A clean restart fixes many no-internet cases.
- Unplug the power cable from the modem or gateway.
- Wait a full 60 seconds.
- Plug it back in.
- Wait 2 to 5 minutes for lights to settle.
- A steady white or blue Internet light usually means service is back; red, orange, off, or long blinking can mean a signal issue.
Check physical connections
Loose or damaged cables can look like an outage.
- Follow the line from the wall jack or fiber jack into the modem and make sure it is seated.
- For DSL, confirm phone devices have DSL filters where required.
- Look for kinks, chew marks, or damage.
- Swap in a spare cable if available.
- Restart the modem again after reseating connections.
More control
Know when to call
Call CenturyLink if the outage tool shows nothing but the Internet/DSL light never turns solid, the same issue returns every few days, or a landline on the same line has static.
Have details ready
Support will want the account number, modem model, light colors or patterns, and how long the outage has lasted.
Sources
- CenturyLink – Troubleshoot No Internet Connection (2025)
- CenturyLink – Modem Light Meanings (2025)
- Lumen/CenturyLink – Outage and Service Status Center (2025)