Today, due to a broadband upgrade, my MacBook Pro suddenly could not access the internet. This was quite frustrating for me, but after some searching and attempts, I found a method that effectively resolves this issue, and I would like to share it.1. Click on the Wi-Fi icon, then find the details in the connected Wi-Fi.
2. In the details, turn off all switches in the proxy settings. After refreshing the webpage, I was able to access the internet again. I am not sure about the specific principle behind this; however, I tried turning it back on later and was still able to access the internet. Could it be due to caching?
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