Wifi Keeps Disconnecting When Youtubing

I am living in a university hostel with only ethernet connection so I decided to use Connectify to create a hotspot for my Note. However, my wifi connection always drops off when I watch videos from the YouTube app. Every other apps works perfectly except the YouTube app. I got no problem with other wifi though.

I'm running stock 4.0.4, not rooted or anything. Tried clearing the app data as well.

Any help?

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