My Toshiba laptop isn't working?

I've had my laptop for less than a year, and I've had a few minor problems that didn't take much longer than an hour or two to fix.
Recently (for about a week or two), my Toshiba computer has been making me reconnect to my internet EVERY 5 minutes. It's nearly impossible to get anything done with the amount of times I have to reconnect to my internet.
Since three nights ago, my Google is also saying that it there's an error.
I don't believe that Google is my problem though, because my sister had the same laptop as I do, and her internet is completely fine. Along with one of my other laptops, and my iPhone, I use Google on all of them.
Can somebody help me?

Toshiba customer support might be able to. You paid for it already.

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