ALERT

[ultratek]

does anybody know what this means?

i get it when i log onto amds game forums:

Server Error in '/us-en' Application.
Validation of viewstate 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.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Web.HttpException: Validation of viewstate 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.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:

[HttpException (0x80004005): Unable to validate data.]
   System.Web.Configuration.MachineKeySection.GetDecodedData(Byte[] buf, Byte[] modifier, Int32 start, Int32 length, Int32& dataLength) +294
   System.Web.UI.ObjectStateFormatter.Deserialize(String inputString) +203

[ViewStateException: Invalid viewstate. 
Client IP: 163.181.249.29
Port: 45528
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.0.2) Gecko/2008091620 Firefox/3.0.2
ViewState: 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
Referer: http://game.amd.com/us-en/login.aspx
Path: /us-en/login.aspx]

[HttpException (0x80004005): Validation of viewstate 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.]
   System.Web.UI.ViewStateException.ThrowError(Exception inner, String persistedState, String errorPageMessage, Boolean macValidationError) +267
   System.Web.UI.ObjectStateFormatter.Deserialize(String inputString) +282
   System.Web.UI.ObjectStateFormatter.System.Web.UI.IStateFormatter.Deserialize(String serializedState) +4
   System.Web.UI.Util.DeserializeWithAssert(IStateFormatter formatter, String serializedState) +37
   System.Web.UI.HiddenFieldPageStatePersister.Load() +198
   System.Web.UI.Page.LoadPageStateFromPersistenceMedium() +83
   System.Web.UI.Page.LoadAllState() +35
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +7350
   System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +213
   System.Web.UI.Page.ProcessRequest() +86
   System.Web.UI.Page.ProcessRequestWithNoAssert(HttpContext context) +18
   System.Web.UI.Page.ProcessRequest(HttpContext context) +49
   ASP.login_aspx.ProcessRequest(HttpContext context) +4
   System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +358
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +64

[corbin]

It's on their end, and it's hard to know exactly what it means without seeing their code, but it looks to be an error with authenticating into their cluster (one of their servers do so, that is).

[ultratek]

hmmm...yea i have had some video driver issues lately with ati...it was all the sudden i couldnt log in and i would get that message....but today i can log in