(It is inevitable that a rookie will encounter network failures when surfing the Internet. It is a good thing to learn a little trick to manage failures. That way you won't have to ask for anything. 1. First check whether others can access the Internet to distinguish whether there is a problem with the comprehensive network. If other people can't access the Internet, check whether the hub, switch, or small fool router is working properly. The main thing is to investigate whether their indicator lights are on. No problem with these devices)
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