I encountered an issue with connecting to GitHub over WiFi where I experienced failure to access the website after joining the WiFi network. During packet capture using Wireshark, the IP address ip1 was obtained. However, the second TCP connection attempt did not receive a response. I resolved this issue by modifying the host file to resolve github.com to an acceptable IP address, which allowed me to access GitHub successfully. Interestingly, after commenting out the host file modifications, I was still able to access GitHub and obtain the same IP address ip1. I would appreciate guidance on why this issue occurred and whether it is related to the ISP's configuration.