Help me bypass the Firewall

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Alright, so, I want to play RuneScape at school.

When I go to www.RuneScape.com you know, it loads up like normal. But I click on "Play now" and it attempts to load, but it gets to the point of 'Connecting to update Server'. Stops for about a minute, then comes up with this:

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.


Is there any way I can bypass this? I've tried everything. Proxy's, the school has blocked them. Downloading swiftkit onto a flash drive then trying to play it - still, nothing. I really want to play with my mates after school, but the bloody firewall is pissing me off.
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Go home and play it, there's no use getting past the firewall, you'll just get countered and caught anyway.