My question is almost exactly the same as “Why do all my downloads stop after some time?” (//www.makeuseof.com/answers/downloads-stop-time/ ) that was asked in this forum. The comments were closed to this & so a new question, my apologies.
I have a Windows 7/SP1 laptop & a Nexus tablet. On both these when I watch videos on Youtube it stops after a few minutes/seconds, same with downloads too when I try to download these videos. I do not see this happening with a Windows XP machine I have. A couple of suggestions by Oron Joffe on the other thread seems relevant. I have tried speaking to the ISP but has not helped. Also the fact that it also happens on the Nexus tablet makes it more confusing. What could be a permanent resolution to this problem. Right now, I have to monitor this download, & repeatedly keep restarting it. Its very painful.