You’re not alone if your Xfinity TV suddenly stops working while the internet keeps running. It’s frustrating, but the fix might be simpler than you think. A quick restart or cable check could solve it—or there’s a smarter way to diagnose the issue in seconds. The real culprit often hides in plain sight, and knowing where to look can save you time and a service call.
Check for Xfinity Service Outages

Wondering why your Xfinity TV isn’t working? First, check for a service outage. Open the Xfinity app, sign in, and go to the outage section to see if your area’s affected. You can also visit the Support Center and use the Outage Map—just enter your address for real-time details. The app delivers outage updates, including repair status, cause, and estimated restoration time. Opt in for outage text alerts to get updates sent straight to your phone. This helps you better troubleshoot your Xfinity experience. If there’s a known issue, you’ll know it fast. Plus, the Support Center automatically checks your eligibility for outage credits—no extra work needed on your part.
Restart Your Xfinity TV Box and Modem

If your Xfinity TV isn’t responding, restart both the TV box and modem to clear temporary glitches. Unplug your Xfinity TV Box, wait 30 seconds, then plug it back in. For the modem, disconnect power, wait a full minute, then reconnect it to restore your internet connection. Afterward, make sure your TV is on the correct input for the TV Box. If problems continue, open the Xfinity app to check your set-top box status and see if there are service outages nearby. Restarting your Xfinity TV Box and modem regularly helps prevent issues. This simple reset can fix most glitches fast.
Check Your Cables Are Secure

After restarting your Xfinity TV Box and modem, the next step is to verify your physical connections. Check your cables are secure—ensure power cables for your X1 TV Box and TV are plugged into working outlets. Hand-tighten all coaxial connections to avoid signal loss. Confirm the HDMI cable is firmly connected to both the TV and X1 TV Box, and that your TV is on the right input. If you’re using a legacy setup, double-check all connections. A loose cable can disrupt TV service using the cable box while leaving your Internet and WiFi connection intact. For quick help, real-time support is available to guide you through fixing physical link issues.
Use the App to Check Your X1 Box Status

Once you’ve confirmed your cables are secure, open the Xfinity app and sign in to check your X1 Box status directly. Tap the “TV” tab to see your set-top box status—if there’s a red dot, it’s offline. Even if your internet works, a downed set-top box can disrupt TV service. Use the “Troubleshoot TV issues” feature for step-by-step help based on your box’s status. The Xfinity app gives real-time updates and fixes fast. If problems continue, chat with support right in the app for live help. This quick check helps you diagnose and resolve issues efficiently without a technician.
Fix a Black Screen by Resetting TV Resolution

When your Xfinity TV screen goes black, don’t panic—resetting the resolution often fixes the issue fast. If you’re facing TV no picture, start by pressing Exit three times to reset display settings. Still no signal? Press 720 on your remote to switch to 720p resolution. For more options, press Xfinity, go to Settings, then Device Settings and select Video Display. Adjust the resolution until your screen works. Make sure your TV input matches the X1 TV Box source. This fix applies whether you’re using the main box or an X1 AnyRoom DVR. If service seems fine but the screen stays dark, a resolution reset usually resolves it.
Frequently Asked Questions
Why Does My Internet Work but Not My Cable TV?
Your internet works but your cable TV doesn’t because the set-top box might be offline, unplugged, or has loose cables. Check the power, HDMI, and coaxial connections, then restart the box to restore service.
Why Is My TV Not Working With Xfinity?
Your TV isn’t working with Xfinity because the box might be offline or connections are loose. Check power cables, restart the X1 box, make certain HDMI’s secure, and confirm your TV’s on the right input—simple fixes often solve the problem fast.
How to Reset Xfinity TV?
you reset your xfinity tv by unplugging the x1 box, waiting 30 seconds, then plugging it back in. or, use the xfinity app—tap services, select tv, and follow restart prompts. wait a few minutes for it to reboot fully and restore signal.
How to Refresh Xfinity TV?
you can refresh your xfinity tv by using the xfinity app—go to services and select troubleshoot tv issues. or, unplug your x1 box for 10 seconds, then plug it back in. you could also restart it via your account online under devices.











