RuneScape was unable to connect to the update server. This is most likely caused by a firewall blocking the connection.

To resolve this:

• If you have firewall or security software installed, they can often block RuneScape from accessing its servers. Please ensure that RuneScape/Java can connect to its servers on port 43594.
• Note: Windows XP Service Pack 2 has built in firewall software. If, when loading RuneScape, this asks if you want to allow the connection, you need to say 'yes'.
• If that doesn't help, then an external firewall may be causing the problem. Please ask your network adminstrator/ISP to open port 43594 for TCP traffic so that RuneScape and Java can run correctly.

If problems persist, please refer to the Technical FAQs, which can be found in the Customer Support section of our website.