There are several reasons why the tweak tester might not work for you:

• It is offline.
• It was too busy at the time you requested the test.
• You've tested more than 5 times in a short period.
• Your Java setup is broken.
• Your MTU is too high.

The last reason needs some further explanation: the tweak applet, if it loads ok, starts by sending some data upstream to us. If all this data is not received, then the tweak test results may not even get reported back to you.

This is probably an MTU problem. Some hardware firewalls require that you lower your MTU slightly. Try the test without the firewall to see if it works. Or, just try to lower your MTU using DrTCP, described elsewhere in this FAQ.

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by edited by JMGullett
last modified: 2007-02-23 16:48:34