Forms authentication failed for the request. Reason: The ticket supplied was invalid. (Solution)

re: Forms authentication failed for the request. Reason: The ticket supplied was invalid. (Solution)

Caryna — Wed, 24 Jun 2009 17:58:12 GMT

Thanks Omar.

All our applications were .NET 1.1, when we started experiencing this problem when we moved a few of them to .NET 2.0 and keep the decryption using SHA1. Now that I switched to 3DES on the .NET ones, the invalid ticket error seems to have stopped.

Many thanks!!!

re: Forms authentication failed for the request. Reason: The ticket supplied was invalid. (Solution)

Stephanie — Fri, 27 Mar 2009 14:55:12 GMT

I too am receiveing this error message in my event log. I am not using a webfarm or multiple servers

re: Forms authentication failed for the request. Reason: The ticket supplied was invalid. (Solution)

Max — Fri, 07 Mar 2008 11:59:31 GMT

Hello!

I have my asp.net website hosted in webHoster company, and I'm receiving this error too...

I don't understand why me and some users can navigate in my webpage and some other users receive this error!

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

I already have a machine Key applied in my webconfig!

re: Forms authentication failed for the request. Reason: The ticket supplied was invalid. (Solution)

mandy — Sat, 16 Feb 2008 07:59:29 GMT

What if protection is None i.e. no encryption configured in forms authentication ?

re: Forms authentication failed for the request. Reason: The ticket supplied was invalid. (Solution)

Robert te Kaat — Thu, 05 Jul 2007 07:06:15 GMT

I'm seeing the same message in the eventlog, however I'm not using a webfarm scenario.

I haven't quite figured it out. I'm guessing my application crashes, which causes new request (with previously encrypted tickets) are validated against different validation- and decryption keys (probably autogenerated on app restart). Sad thing is that my eventlog does not mention app crashes (or recycles), and because of the crash, my logging-features don't get a chance to log the reason...

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Thu, 05 Jul 2007 04:04:38 GMT

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re: Forms authentication failed for the request. Reason: The ticket supplied was invalid. (Solution)

omar — Tue, 01 May 2007 02:11:19 GMT

If you are running same application in multiple process or server, you need to have the same machinekey and validationkey. Otherwise encrypted data from one process/server will not get decrypted when another process/server receives it.

re: Forms authentication failed for the request. Reason: The ticket supplied was invalid. (Solution)

Maqsood — Mon, 30 Apr 2007 10:36:43 GMT

thanks for that,

I have another question, here it goes:

My application runs on .Net 2.0 framework and is intalled in three different boxes on a web farm with windows authentication,

The data posted to any of three servers is along with veiwstate and the validation key is Autogenerate,Isolateapps.

Whats is your opinion, Do i need to update my validation/decription key with machine key generated??

re: Forms authentication failed for the request. Reason: The ticket supplied was invalid. (Solution)

... — Sat, 31 Mar 2007 07:04:02 GMT

Du musst ein Fachmann sein - wirklich guter Aufstellungsort, den du hast!

re: Forms authentication failed for the request. Reason: The ticket supplied was invalid. (Solution)

sean — Fri, 29 Dec 2006 19:26:26 GMT

Chris:

Thanks, but the exe doesn't work.

"unhandled exception: System.IndexOutOfRangeException: Index was outside the bounds of the array at Crypto.KeyCreator.Main(String[] args)"

----

Try supplying the arguments to the program of: 24 64

You will find that it works fantastically fine.

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Sun, 29 Oct 2006 19:30:29 GMT

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re: Forms authentication failed for the request. Reason: The ticket supplied was invalid. (Solution)

Chris Lively — Fri, 01 Sep 2006 22:11:46 GMT

Thanks, but the exe doesn't work.
"unhandled exception: System.IndexOutOfRangeException: Index was outside the bounds of the array at Crypto.KeyCreator.Main(String[] args)"