Samsung TV not recognizing Xfinity box

Hello, @user_39f6f1 Thank you for reaching out to our Xfinity Forums support team! I am sorry to hear that your wireless box is having difficulties recognizing your TV! Have you tried to swap out the HDMI Cable for a new one? Or have you tried moving the cable box to a different TV to see if another TV is able to recognize the cable box? 

I am having this same issue! I used the Samsung remote to get to my Netflix but when I was done watching and pressed the Home icon the Xfinity icon was no longer there to switch to. I reset my Xfinity box and still no luck. I had to get to the settings on the Samsung remote and arrow over to HDMI 1 to get it back. But it said “not recognized” where the Xfinity box should be showing. Has there been a solution to this? Not sure why all of a sudden I’m having this issue. 

I have the same problem!!!

I bought a new samsung HD smart TV a few weeks ago

Only way to get it connected to the xfinity box is to restart the xfinity box.

Then when the TV has been turned off for awhile......like overnight........it is no longer connected.

It has to be like a signal thing?

Why would it only lose connection when turned off?

I have the same problem. I have a Samsung smart TV I unplug the HDMI to play a game at the Xfinity was plugged into then when I came back there was no Xfinity icon and the box was not recognized. I see all these answers from Xfinity personnel but there is no direction other than plug it in to see if it works somewhere else that’s not a solution.

Was anyone able to get this resolved? We are having the same issue after hooking up an Xbox for about two hours. 

Our xfinity box is not connected by hdmi, it is connected by cable and we do not have the xfinity icon, it is not a source, it is just a frustrating waste of money at this point.  I do not understand why Samsung definitely has a problem with xfinity as there are many people writing here with no real solution.

Interesting issue. I don't have this problem now, but I had a very similar problem several years ago.

I had a Toshiba HD television. We upgraded our Xfinity service and they sent the new Xfinity box. When we hooked it up like the old box, it didn't work. I tried everything...and it never worked. Here are the things that Xfinity told me to do:

1. I was told to verify that the HDMI connections were all working. In fact, everything else worked in each HDMI connection and with each HDMI cable that I had. The Xbox, Blu-ray player and a Roku worked fine. I even used one of the HDMI cables to connect my computer to the TV. It worked flawlessly. So, the HDMI connections and the HDMI cables were fine.
2. I was told to get a new HDMI cable as the one sent by Xfinity might have been defective. So, I bought one from Amazon and then Costco (the ones rated for the highest speeds/data flow. Still, the only thing that didn't work was the Xfinity box. 
3. Several technicians visited the house. They never could get it working. They hooked up an older box and it worked fine. However, we were paying for the Xfinity HD, DVR, etc., so I didn't want to just revert back to older tech.
4. I searched online and finally found people who had a similar problem. At the time, it was an issue for a few specific models of Toshiba and Sony. They just had software incompatibility with the Xfinity signal (or vice versa). I called the escalated Xfinity tech support and explained this. They passed the responsibility to Toshiba. So, I called Toshiba. They were puzzled and said that it isn't their responsibility to figure out Xfinity issues (and said that there was no problem with the TV). 
5. Ultimately, I found a work-around. During a scheduled tech visit, I told them what I found. The two tech workers tried it....and it worked flawlessly.

Obviously, the component cable was not supposed to be a solution but a temporary fix. However, I periodically attempted to try the HDMI. For about two years, it never worked. I simply gave up. Eventually, I bought a new Samsung 4K TV. Just before unhooking the old TV, I tried the HDMI cable on the Toshiba. It worked. Apparently, Xfinity finally fixed it...more than two years later. 

Thankfully, the new Samsung 4KTV worked with the same HDMI cable in the same box. In fact, my subsequent 4KTV worked flawlessly too. 

I wonder if the issue is a software issue (as I was led to believe with my Toshiba). If so, you might have issues. Xfinity was very slow to admit that this was an Xfinity issue -- thinking that it was due to a defective TV or HDMI cable. And, of course, there is no component work-around because the new X1 boxes do not support component cables. 

Good luck!

Having the same problem as everybody else.  Xfinity box stops being recognized by new, top-of-the line Samsung TV (Q90T).  Already replaced the Xfinity box after extensive troubleshooting.  New box worked for 1 day (!!!).  

Frustrating to see that the Xfinity folks have no insight into the cause of the problem for how to fix it.  

I just got a brand new Samsung TV. I cannot pair the Samsung TV remote to recognize the Comcast set top box. It recognizes it in setup mode but cannot complete setup even after searching fir the model number of the cable box.  

Cable works fine when using the Xfinity remote.

New Samsung tv. New Xfinity box.  New HDMI cables but HDMi / cable box not recognized?  How do we fix this???

Having the exact same problem with our brand new Samsung TV. When we first set up and connected the tv to Xfinity, the Xfinity icon appeared and it seemed things were working well.  A few minutes later, the icon was gone.  We've tried changing HDMI ports (using port 1 or 3) and swapping cables to see if the cable is the problem.  Nothing solves the problem.  When tv is on, we can see one cable channel but have no way to use the Samsung remote to change channels or see tv guide. The icon that was previously there, that allowed us to access the guide and channels using the Samsung remote, has disappeared.  We've also tried all troubleshooting we can find on the tv itself. We have unplugged the router and cable box and tv -- and rebooted everything -- multiple times.

I am having this issue as well. I tried different ports and different cables but this is still not working. 

I am having VERY similar issues.  I just received the new X1 box and I am having quite a few issues post set up.  Please note, none of these issues occurred when using the old Xfinity box.

1. The X1 box is not recognized when plugged into ANY HDMI port on the new Samsung TV. (brand new HDMI cable used)

2. Each night, as the box updates, the box loses communication to the TV.  Requiring me to unpair the remote and start the set up process, from scratch every day.

3. I have a small square Xfinity box in the bedroom, attached to an older Samsung TV.  My thought was to put the X1 box in the bedroom, to see if an older model Samsung will keep from having to start the set up process every day, and that is still TBD as this is the first day I'm trying that.

4. However, after hooking up the small square Xfinity box to the new Samsung TV, the box is still not recognized when plugged into ANY HDMI port.

Is there any way to resolve?  I'm starting to wish I kept my old Xfinity cable box and just dealt with not having Peacock for free. 

It's the crappy old Xfinity boxes they give you.  SmartTV doesn't mean smart Xfinity box.  

Got to go to YouTubeTV and drop the cord.  

I find it funny Xfinity tells these people to do the same thing.  Stop blaming the cable, that's not the issue.  

Having problems with your Samsung TV and losing connection to your cable box? Are you using the Samsung remote to power on your TV? That is likely the issue. For some reason, the TV is not "waking" the cable box when it turns on. I had this issue with an XG1v4. When I used the TV remote to power the tv on, sometimes it worked, sometimes not. When not, it would display the screensaver from the cable box. I had to press a button on the Xfinity remote to wake it. Then viola!

What could solve is to run "Setup TV." First, all of your HDMI devices should be connected and powered on. The Xfinity remote should be paired to control your TV. Launch the Samsung Hub, select Source, highlight TV, press up and enter to Set Up TV. Follow the prompts and add/confirm all your devices. (NOTE: Running Setup TV does NOT perform a Factory Reset. It only resets the way your TV interacts with HDMI devices. Will not affect your installed Apps or other TV settings.)

You will likely need to use your Xfinity remote to power on your TV from now on. Otherwise, the TV remote might work sometimes. I finally gave in and use the Xfinity remote to power on the TV.