Sometimes, when I leave Charles on, and put my MacBook into sleep mode, the next day, it will crash. When this happens, the internet is often down for the machine.
Fix1:
Go to Wi-Fi -> Network -> Details… -> Proxies -> turn off Web proxy (HTTP) and Secure web proxy (HTTPS)
https://www.charlesproxy.com/documentation/faqs/can-no-longer-browse-without-charles-running/Â ↩