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HomeHomeUsing DNN Platf...Using DNN Platf...Administration ...Administration ...Validation of v13wstat3 MAC failedValidation of v13wstat3 MAC failed
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9/2/2008 5:10 PM
 
Skipper

Joined: 7/23/2007
Posts: 11
A critical error has occurred.
Validation of v13wstat3 MAC failed. If this application is hosted by a Web Farm or cluster, ensure that <machineKey> configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster.

The sites are not in a clustered environment and have been stable for a long time... the guests have never received these errors before and are using a variety of operating systems and firefox and safari. To date, I've not heard of anyone using IE experiencing the problem.

Thanks to all for any assistance,
Skip

 

I've got multiple sites that guests including myself  have started getting the following error...

   
 
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9/3/2008 10:06 AM
 
Jon Seeley

www.seeleyware.com
Joined: 8/8/2006
Posts: 597

I started seeing this when I moved to 4.8.x for no apparent reason.  However, it has a fairly easy fix -- create a static validationKey under the machineKey section in your web.config.  It is generally set to validationKey="AutoGenerate,IsolateApps" however for some reason that will fail from time to time. 

The following resources will talk about that: @Microsoft

Key generator @DevelopmentNow

I haven't done this for my own site yet, but I have done this for some client sites and it eliminated their issues.  As a note, I believe the AutoGenerate,IsolateApps was put in the default web.config because there is a known issue (see SecurityBulletin) in the v13wstat3 stuff and a known value.

Good luck!

-- Jon Seeley
DotNetNuke Modules
Custom DotNetNuke and .NET Development
http://www.seeleyware.com
 
New Post
9/3/2008 10:12 AM
 
Jon Seeley

www.seeleyware.com
Joined: 8/8/2006
Posts: 597

BTW, I failed to mention... DO NOT CHANGE your decryptionkey now that you have data in your portal (ie., users, etc).  That will make it so any existing users, including host, cannot login anymore.  Only change your validationKey to be something static instead of AutoGenerate,IsolateApps.

-- Jon Seeley
DotNetNuke Modules
Custom DotNetNuke and .NET Development
http://www.seeleyware.com
 
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