If you suspect a serious hardware or software problem, an online computer repair service won't do you much good.
Any kind of problem that prevents you from successfully connecting to the Internet will likely prevent a remote support agent from connecting to your PC over that same Internet.
You could still contact an online repair service but you'll probably be sent to a local PC repair shop and likely incur a charge for that referral. There's no reason to waste your money getting a referral from a biased source like this.
