playing video on YouTube is always choppy and buffering quite a bit and the only thing that my router / modem is connected to only the smart TV by way of hardwired cat6e connection I could understand if this was wirelessly connected but it is hardwired and there is nothing else connected to the router by Wireless and I am getting anywhere between 100 and 155 megabytes per second so I know that the speed is fine and the only thing it does it to is YouTube and even if I adjust the YouTube screen quality from 2180 down to 1440 down to 1080 and then down to 720 P and sometimes it works on 720 but most of the to 480p and then the quality looks like crap and I actually get better quality when I use my cell phone mobile hotspot connected to the smart TV but that's ridiculous in price going way over my data so that's why I got Wi-Fi and it really doesn't matter whether I use the app on the phone of YouTube as a remote for the YouTube on the screen TV screen or whether I use the YouTube app that is embedded in the smart TV either way the connection are very poor and yeah I'm not really sure what to do I had the provider of the Wi-Fi come and do a test and make sure that it wasn't anything to do with the hardware wiring or anything like that and I also when I connect my laptop hardwired to the router everything and anything I stream on the laptop not using Wireless it works perfectly fine same with my cell phone connected by Wireless also works fine it's only seems to be the smart TV and I also tried somebody else's Smart TV see if it was a problem with mine and there's also did it so I know it is not a problem with my stuff