Failed to connect to github.com port 443: Timed out Failed to connect to github.com port 443: Timed out

Failed to connect to github.com port 443: Timed out, because I recently used some FanQiang software, which can open the network proxy and cause a series of problems, not only here, but also if other problems, such as Python installation of a package with PIP function shows the proxy has a problem, so use free stuff with care. Easy to out of the pit

The solution

Turn off the manual setting agent in the agent here on the computer network and Internet