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Error 4009 Viewstate verification failed & Error 4005 Forms authentication failed

2
Hi expert, I am getting this type of error 2 times from one user:

Event code: 4009

Event message: Viewstate verification failed. Reason: The viewstate supplied failed integrity check.

Then another error, from different user is this:

Event code: 4005

Event message: Forms authentication failed for the request. Reason: The ticket supplied was invalid.


Please advise.
Sep 19 '07 #1
0 5005

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