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We have our application set up in a web farm. Sometimes, on submit of the page, we get the above error; other times the submit happens to be successful, and the postback happens. I seem to suspect one of the machines in the farm is defective. We never faced such a problem on the test box however. So what could be the problem? How do I resolve this? Must there be some setting in the machine.config that should be the same on all machines?

deostroll
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1 Answers1

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Have you set up MachineKey properly?

vc 74
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