I have tried running the topcoder arena in linux many times and have failed. Our university uses proxy server with following settings:
proxy: 10.3.100.207 port: 8080
I have configured OpenJDK settings and system settings. I have configured the arena proxy settings in many way, used all the 4 tunnels, but wasn't able to get it work. Lots of people in my college are regular participants in various contests like spoj/codeforces/codechef/hackerrank, but sadly we aren't able to participate in topcoder matches. Any one has a solution to it?