Comcast cable box not working no signal

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Comcast cable box not working no signal

Digital TV service from Comcast can sometimes develop problems. Signal problems, where the TV either has no signal, or signals are not working properly, giving odd results in a show, like voices and lips not matching up or signals that come and go, require troubleshooting. Read any messages on the TV screen.

Some Comcast channels might not be available or are not part of your package.

comcast cable box not working no signal

When one of these channels does not play, the channel will display a message. If there is no message and the channel does not play, the problem is related to the signal. Check the cables. If cables are loose but still attached, there will be a signal, but it might come and go. Push loose cable firmly in place, and the signal should improve. Unplug the cable box. Leave it unplugged for one to two minutes, then plug it back in.

Turn the cable box back on, allow it to load, and check the signal. This simple procedure can fix many problems. If problems persist, call the Comcast customer service number and speak to a representative. If your problems relate to HD transmission, make sure HD is included in your package.

If the problems are not related to an HD transmission, set up an appointment for a technician to come over.

Troubleshooting Tips for Xfinity TV

The cords might have breaks or problems which require new equipment to fix the signal problems. Step 1. Step 2. Step 3. Step 4. Show Comments.Bought this TV last summer, set it up as a "smart tv" and it worked fine.

Tried different cables, etc. Tried new Xbox One, no signal. Swapped out cables, reset TV several timesno signal. USB, ethernet, wifi, and component all work. Go to Solution. View solution in original post. Have you tried asking for a replacement box with Comcast to see if that is the root of the symptom?

I've swapped other cable boxes from around the house and the Xbox - all with different cables as well, no luck.

How to Troubleshoot Comcast Cable TV Signals

Turns out the main board was bad. Under warranty, so tech came to the house. Here Samsung. I believe so. Swapped out and all has been fine since. Don't know if it came that way or failed early on, but the fix has worked for a year now.

I happen to have a samsung plasma, i know kinda outdated but it seems like the overheating of the main board caused the hdmi to have no signal tho the port is a bit wiggly from the pulling of the wire as time progressed. Sign In. Turn on suggestions. Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. Showing results for. Search instead for. Did you mean:. Jess11 Asteroid. Any ideas? TIA Solved! You must be signed in to add attachments.

Accepted Solutions. SamsungTam Samsung Moderator. Reply LoadingI have been experiencing sporadic no signal message when turning on tv from being off. The tv input is correct.

The xfinity tv signal returns after refresh or reboot of x1 box. Any suggestions for a more permanent fix. My small external box in bedroom works during the signal loss at main box and anyroom dvr continues to work. Any thoughts? Go to Solution.

comcast cable box not working no signal

I am having a comcast tech visit tomorrow to take a look at the x1 dvr box and the sporadic loss of signal. It only happens when tv is off and I turn it on and I don't have a signal, requiring a reboot of box to reacquire signal. I will post any info that helps if the tech figures it out. Well, comcast tech came out and replaced the x1 dvr box. He thought the box might have a bad hdmi port with intermittent failure.

Everything seemed fine. I turned off tv and several hours later I turned on tv to watch and I got no signal on my tv. Thinking about trouble shooting, I got out a new hdmi cable and a another tv with hdmi port. I removed the current hdmi cable from x1 box and replaced with new hdmi cable connected to different tv. Still no signal.

I restarted x1 box and got signal. I spoke again to tech and he suggested I reset power option in x1 system settings to "power off" to on. He had heard this may resolve this dropped signal issue. Obviously, two x1 boxes with the same issue appears not to be a box problem. Contacted tech again for further action to resolve this ongoing issue.

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Every day, when starting up, no signal. Until the next morning. The tech said that it was most likely due to schedule daily updates. I changed the schedule to a time frame when we were not around and still had the issue. I figured it was the box. Upstairs with the X1 box, we had a Hisense tv that worked great until it died on Tuesday. So, I moved the Vizio and connected it to the X1, it worked fine for that day, convincing me that the issue was the truly the other box.

It does not matter what HDMI port is used, no signal. I have read many other forum posts and it appears that this a known issue, yet is unresolved. Due to the frustration, and amount of money we are paying, we are about to jump to satelite dish, etc. I have this same issue.If you have a disconnected or inactive Comcast Xfinity set-top box, there are several steps you can take to remedy the issue. Whether your television screen is completely blank, stuck on a connecting or loading screen, or presenting an error code, at least one of the options below should be able to rectify the problem.

All you need to do is reach in the back of the box to pull out the power cord and shut it off. Wait a minimum of 10 seconds, then plug the power cord back into the box. Ensure your TV is still on and give the set-top box a few minutes to boot back up.

For a company that people really love to hateComcast seriously has a fantastic mobile app. The My Account app has several troubleshooting features that can even repair a set-top box remotely without talking to a support assistant or requiring any work on your end at all. Then pick one of a few different solution options. Choose Troubleshooting to answer a few questions about the problem and have Comcast try to solve it for you over the air. Choose Restart the Device to restart the device remotely.

You may have already done this if you unplugged the box and plugged it back in.

tv says no signal - XFinity

Use the search tool to get specific. Take a look at that for more details.

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Give them a call for help, but here are some important details you need to know. First, have some information ready to verify your identity. Second, Comcast representatives can often take their sweet time on the phone running through all possible scenarios. Let me save you some time.

If all else fails, perhaps the lifespan of that set-top box has reached its end. However, this is the slowest way to repair your problem as it might take days or a couple of weeks to arrive.Forums New posts Search forums. What's new New posts New profile posts Latest activity.

Log in Register. Search titles only. Search Advanced search…. New posts. Search forums. Log in. For a better experience, please enable JavaScript in your browser before proceeding. Guest2 Guest Post Oct 11, XFinity-Comcast channel programming, tv says no signal? IloveTV Banned Oct 11, The cable box is not turned on or has no power. The video cable connecting the TV to the cable box is not plugged in. The TV is on the wrong input channel.

Dealing with issue number 1 is pretty basic: just make sure the cable box has electricity and the power button has been pushed.

comcast cable box not working no signal

Issue number 2 is a little more complicated, in that you need to know which cables connect the box to the TV. Look here for a step-by-step guide on how to plug in your cable box and determine what kind of cables you are using.

Once you have determined what kind of cable you are using, simply plug the cable into the appropriate jack plug on the back of the box and on the TV, and you should be fine.

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Issue 3 is a related issue. Each jack on the back of your TV thas its own special input channel, in addition to the normal numbered channels. To change the input channel on your TV you will need the remote control that came with your TV when you purchased it. Once you get below channel 1 you will start to see a menu of choices like those listed above.Menu Menu. Search Everywhere Threads This forum This thread.

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Search titles only. Search Advanced search…. Everywhere Threads This forum This thread. Search Advanced…. Log in. Category 1 Category 2 Category 3 Category 4. Support UI. X Donate Contact us. New posts Trending Search forums. What's new. New posts New profile posts Latest activity. Current visitors New profile posts Search profile posts Billboard Trophies. Community Question: Have you "cut the cord? Sidebar Sidebar. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.

Previous Next Sort by votes. DeniseAnn Honorable. Oct 12, 1 0 10, 0. Then all of a sudden, my green light went out. It's plugged in and everything is connected as before - but no green light and no digital cable services. How do I fix? Wolfshadw Splendid Moderator.

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Aug 3, 2, 1 24, If it's a Comcast unit, contact Comcast to have them replace it. You must log in or register to reply here. Sony Bravia.This article was co-authored by our trained team of editors and researchers who validated it for accuracy and comprehensiveness.

This article has been viewedtimes. Learn more When your cable goes out unexpectedly or your cable output is lacking sound or displays a grainy picture, there is a good chance this has to do with your current setup.

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While calling the cable company to help resolve the issue may help, you may actually be in a situation where a small malfunction requires the simplest fix or troubleshooting procedure. To fix cable TV, start by turning your cable device off and back on again. Next, check the cables on your device to make sure none are loose and all are fed into the appropriate inputs and outputs.

If all else fails, call your cable provider to inquire about possible outages or problems with your account. For tips on displaying the correct video unit, read on! Did this summary help you? Yes No. Please help us continue to provide you with our trusted how-to guides and videos for free by whitelisting wikiHow on your ad blocker. Log in Facebook. No account yet? Create an account. Edit this Article. We use cookies to make wikiHow great. By using our site, you agree to our cookie policy.

Learn why people trust wikiHow. Explore this Article methods. Tips and Warnings. Related Articles. Article Summary. Method 1 of Turn off then turn on your device. It is possible that your DVR or cable box may have malfunctioned and requires a power cycle.

On the device itself hold the power button for ten seconds to shut it off. It it continues to not turn off, you can unplug the power cord from the power outlet for 15 seconds then plug back in and wait 30 seconds. Press the power button to turn the device back on. Review the error code on your device. Your device may have a specific set of numbers or errors on its display indicating a problem.

You may have a different cable box such as a Motorola device or Scientific Atlanta cable box which depends on the region you are in which will require you to check for specific error codes based on the manufacturer.

Check the cables on your device. Make sure the coaxial cable cable antenna wire is not loose between both the device and the television. Ensure the cable is fed into the appropriate inputs and outputs between the cable box and television displays. Try using a stronger RG Radio Guide coaxial cable type such as RG-6 which provides a stronger signal strength to ensure the highest quality picture possible.


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