Resolve — Topcoder Application blocked by java security in Windows

Long Story Short

Add Topcoder URLs to exception list of Java security

Long Story

With Java 8 Medium security level has been removed , quoting Oracle —

“ Starting with Java 8 Update 20, the Medium security level has been removed from the Java Control Panel. Only High and Very High levels are available.”

Add following URLs in exception list of Java Control Panel :

http://topcoder.com
http://www.topcoder.com
http://arena.topcoder.com
https://topcoder.com
https://www.topcoder.com
https://arena.topcoder.com

Open Java Control Panel

Go to C:\Program Files\Java\jre1.8.0_111\bin , run javacpl.exe as Administrator . Open Security tab and add aforementioned URLs in exception list and press Ok .

Try running the Topcoder applet again , with proper secuirty prompts you should be able to start the applet