Errors with starting Runescape
By Sophia Vance
When I try to start Runescape I get an error message that says: CLassNotFoundException and lists Rs2Applet.class. How do I fix this so I can play?
52 Answers
Your firewall blocks Java from downloading the RuneScape applet. Try configuring the firewall to allow Java. As some firewalls cause problems specifically with Java 7, downgrading to Java 6 may help.
Source: Jagex Support Page
2Disable any proxies or proxy add ons you might have.Had the same issue and disabling the data compression proxy addon in chrome did the trick.