When it stops working, I'm still able to navigate to websites in different ports (for example 8081), FTP, ping, trace route, etc. Everything that goes through the Transparent Proxy (HTTP and HTTPS) stops working until I reset my data connection.
Suddenly, unable to navigate to any website, however ports other than 80 (HTTP) and 443 (HTTPS) work. AT&T Transparent Proxy is failing sometimes.
