RouterLightsFixXfinity WiFi Not Working: How to Diagnose and Fix It
Xfinity WiFi problems come in two flavors: the whole network is down, or only some devices or rooms are affected. Diagnose which one you have before you restart anything, and the fix becomes quick. This guide gives you eight steps in the order that solves the most cases.
First, work out how big the problem is
Ask three questions. Are all devices offline or only one? Does a wired connection work when WiFi does not? What color is the gateway light? If everything is offline and the gateway shows anything other than steady white, start with the outage check and the light guide. If only one device is affected, jump to step 7.
8 fixes for Xfinity WiFi that is not working
1. Check for an outage
Open the Xfinity app on mobile data and look for an outage. If one is reported at your address, wait for it to end.
2. Read the gateway light
Steady white means the gateway is online. Red means no internet connection. Other colors mean it is connecting and to wait about 15 minutes. See our Xfinity gateway lights guide.
3. Restart the gateway
Use the Xfinity app to restart the gateway, or unplug the power cord for 60 seconds. Give it ten minutes. If you have a separate router behind a modem, restart the modem first.
4. Run the app's troubleshoot tool
The Xfinity app can run diagnostics on your gateway and restart it remotely. Follow its prompts and note anything it reports.
5. Check every cable
Tighten the coax cable at the wall and the gateway, seat the power cord firmly and remove splitters. Replace damaged cables.
6. Fix drops and slow WiFi
Move the gateway to an open, central spot, away from microwaves, cordless phones and thick walls. Use the 5 GHz network near the gateway for speed and the 2.4 GHz network for range. Disconnect devices you are not using and restart the gateway once.
7. Fix a single device
Turn WiFi off and on, forget the network and reconnect, restart the device and install updates. If other devices work, the gateway is fine.
8. Reset, then contact Xfinity
If nothing has worked, restart or reset following our guide on how to reset an Xfinity router. Then contact Xfinity, describe what you have tried and ask them to check your signal levels.
Connected but no internet
If devices show WiFi connected but pages will not load, the gateway is reachable but is not connecting to Xfinity. Check the outage status and light, then restart the gateway.
The bottom line
Check for an outage, read the light, restart, check cables, then troubleshoot the device. If the problem persists, escalate with a list of steps you already tried.
Frequently asked questions about xfinity wifi not working
Why is my Xfinity WiFi not working?
Common causes are an outage, a gateway that needs a restart, loose cables, interference or a problem on one device. Check whether every device is affected first.
Why does my Xfinity WiFi keep disconnecting?
Drops usually come from interference, poor placement, overheating or a weak line signal. Move the gateway, restart it and ask Xfinity to check your signal if it continues.
How do I check an Xfinity outage?
Use the Xfinity app on mobile data or Xfinity's status page. Outage information shows for your address when you sign in.
Should I restart the modem or the router first?
If you have a separate modem and router, restart the modem first, wait for it to connect, then restart the router. With a combined gateway, restart the gateway.
Can the Xfinity app help troubleshoot?
Yes. The app offers a troubleshoot option that runs diagnostics on your gateway and can restart it remotely.