@mrcoco 

Your model of Samsung TV has Ethernet port. Bring Satellite X60 to Samsung TV and connected them with Ethernet cable. That would help to narrow the issue: is it WiFi connectivity to Deco mesh or some Deco mesh settings that interfere with Samsung TV does not matter how it is connected to Deco mesh.

Thanks for your answer, but the deco x60 I am using is on the unit just above the television, I tried it with the cat6 network cable, unfortunately it gave the same negative result.

  @mrcoco 

If you are sure your TV is properly connected to Deco unit with Ethernet cable, Google "How to cold boot, reboot, restart, or reset your Samsung Smart TV" and see if that will help.

  @mrcoco 

If you are connecting TV to Main Deco, try (for troubleshooting purposes) to connect TV to Satellite Deco. Temporary bring Satellite Deco to where TV is, and connect TV with Ethernet cable to Satellite Deco.

hello again yes it's true my television is connected to anadeco x60 device I will definitely try what you said, but the main deco that I use as a router is right next to the television, its distance is 1.5 meters, my house is a 3 floor villa, there are a total of 5 deco m9plus in every suitable part of the villa at the moment, the internet works super well everywhere but the bed My smart tv or iptv broadcasts do not work on any of my televisions in my room, kitchen or living room, but youtube and netflix work without any problems. If I can't fix this problem, I will return all the devices and return to the ASUS network system. Unfortunately, I loved the tp-link deco products, it was fully compatible with everything. total of my devices....deco x60 (2.pack)ver.2.0+deco m9plus(2.pack)ver.2.0+deco m9plus(3.pack)ver.2.0.

Hello, I will definitely share video with you when I am at home, first with deco x60 and then with zyxel by changing the modem immediately.

I have a different brand and model modem router that I use at my house. I have never had such an access problem with any of them. I hope we can somehow solve my access problem on these new devices.

Thank you very much.

@David-TP , I just sent you two different videos, the result with deco x60 is negative. The channels on smart iptv and ott iptv player could not be accessed, and I wanted to share this. In the other video, zyxel modem router was used and access was provided without any problems. iptv channels that cannot be accessed with deco x60 work without problems. maybe access to iptv channels that cannot be accessed when a firmware update is made. Thank you very much.