Watching Youtube kills my internet connection

[Android Central Question]

I have an Asus ZenPad S 8. When I try to watch a YouTube video it will work for few sec then I lose connection to the internet even though on my tablet it says its connected. To fix it I have to turn the Wi-Fi on my tablet off and on agian. It will work for maybe 20 sec into the video I'm watching and lose connection again repeating the process again.
I
If I watch a live stream on yt it doesn't do it but if I watch a video it does. It happens on other video sites too.