IPhone 4 Internet disconnects?

My iPhone 4 Internet randomly disconnects while I'm watching a YouTube vid or just using it at home. I don't know hy it disconnects but it happens randomly.

However, try "Reset Network Settings" on the iphone.

Maybe it's your router, try unplugging it for 1 minute and plug it in. Restart your phone's NETWORK setting to factory settings. Don't worry your phone's data won't be deleted. Best of luck.

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