Viewstate error

[No one]

Here is the view state error I am getting on a Windows 2003 box:
-------------------------------------------------

Unable to validate data.
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.Http Exception: Unable to validate data.

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.Conf iguration.Machi neKey.GetDecode dData(Byte[] buf,
Byte[] modifier, Int32 start, Int32 length, Int32& dataLength) +195
System.Web.UI.L osFormatter.Des erialize(String input) +60

[HttpException (0x80004005): Authentication of viewstate failed. 1) If
this is a cluster, edit <machineKey> configuration so all servers use
the same validationKey and validation algorithm. AutoGenerate cannot be
used in a cluster. 2) Viewstate can only be posted back to the same
page. 3) The viewstate for this page might be corrupted.]
System.Web.UI.L osFormatter.Des erialize(String input) +118
System.Web.UI.P age.LoadPageSta teFromPersisten ceMedium() +101

[HttpException (0x80004005): Invalid_Viewsta te
Client IP: 198.173.17.221
Port: 37368
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1;
..NET CLR 1.1.4322)
ViewState:
dDwtNjU1NzEzMDg xO3Q8O2w8aTwxPj tpPDM+Oz47bDx0P DtsPGk8MT47Pjts PHQ8cDxwPGw8VGV 4dDs+O2w8Oz4+Oz 47Oz47Pj47dDw7b DxpPDA+Oz47bDx0 PDtsPGk8MD47Pjt sPHQ8O2w8aTwxPj s+O2w8dDw7bDxpP DA+Oz47bDx0PHA8 cDxsPEVuYWJsZWQ 7VmlzaWJsZTs+O2 w8bzxmPjtvPGY+O z4+Oz47Oz47Pj47 Pj47Pj47Pj47Pj4 7Pu78vTz5oFNjQ1/NqsSMBiJFXHDm
Http-Referer: http://www.fineartsfund.org/ePledge-Test/Login.aspx
Path: /ePledge-Test/Login.aspx.]
System.Web.UI.P age.LoadPageSta teFromPersisten ceMedium() +442
System.Web.UI.P age.LoadPageVie wState() +18
System.Web.UI.P age.ProcessRequ estMain() +447


--------------------------------------------------------------------------------
Version Information: Microsoft .NET Framework Version:1.1.432 2.2300;
ASP.NET Version:1.1.432 2.2300

[Alvin Bruney [MVP - ASP.NET]]

is this a consistent error? if it is transient, you may want to just ignore
it. The fixes for this permutation of viewstate issue isn't really worth the
time and effort investment.

--
Regards,
Alvin Bruney - ASP.NET MVP

[Shameless Author Plug]
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Now available @ www.lulu.com/owc, Amazon.com etc
"No one" <no***@yahoo.co m> wrote in message
news:cr******** ****@gandalf.gr ey-net.com...

Here is the view state error I am getting on a Windows 2003 box:
-------------------------------------------------

Unable to validate data.
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.Http Exception: Unable to validate data.

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.Conf iguration.Machi neKey.GetDecode dData(Byte[] buf, Byte[]
modifier, Int32 start, Int32 length, Int32& dataLength) +195
System.Web.UI.L osFormatter.Des erialize(String input) +60

[HttpException (0x80004005): Authentication of viewstate failed. 1) If
this is a cluster, edit <machineKey> configuration so all servers use the
same validationKey and validation algorithm. AutoGenerate cannot be used
in a cluster. 2) Viewstate can only be posted back to the same page. 3)
The viewstate for this page might be corrupted.]
System.Web.UI.L osFormatter.Des erialize(String input) +118
System.Web.UI.P age.LoadPageSta teFromPersisten ceMedium() +101

[HttpException (0x80004005): Invalid_Viewsta te
Client IP: 198.173.17.221
Port: 37368
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET
CLR 1.1.4322)
ViewState:
dDwtNjU1NzEzMDg xO3Q8O2w8aTwxPj tpPDM+Oz47bDx0P DtsPGk8MT47Pjts PHQ8cDxwPGw8VGV 4dDs+O2w8Oz4+Oz 47Oz47Pj47dDw7b DxpPDA+Oz47bDx0 PDtsPGk8MD47Pjt sPHQ8O2w8aTwxPj s+O2w8dDw7bDxpP DA+Oz47bDx0PHA8 cDxsPEVuYWJsZWQ 7VmlzaWJsZTs+O2 w8bzxmPjtvPGY+O z4+Oz47Oz47Pj47 Pj47Pj47Pj47Pj4 7Pu78vTz5oFNjQ1/NqsSMBiJFXHDm
Http-Referer: http://www.fineartsfund.org/ePledge-Test/Login.aspx
Path: /ePledge-Test/Login.aspx.]
System.Web.UI.P age.LoadPageSta teFromPersisten ceMedium() +442
System.Web.UI.P age.LoadPageVie wState() +18
System.Web.UI.P age.ProcessRequ estMain() +447


--------------------------------------------------------------------------------
Version Information: Microsoft .NET Framework Version:1.1.432 2.2300;
ASP.NET Version:1.1.432 2.2300

[No one]

This is a VERY consistent error, but it only happens in the production
environment. This application was recently migrated from Win2K server
to Win 2003 server. Interestingly enough, it seems to happen with IE
more so than Firefox. But the client is down till this is fixed.

Thanks

Alvin Bruney [MVP - ASP.NET] wrote:

is this a consistent error? if it is transient, you may want to just ignore
it. The fixes for this permutation of viewstate issue isn't really worth the
time and effort investment.

[Andrew]

is this a clustered environment or web farm?

if so:

http://support.microsoft.com/default...;en-us;Q312906

-Andrew
"No one" <no***@yahoo.co m> wrote in message
news:at******** ****@gandalf.gr ey-net.com...

This is a VERY consistent error, but it only happens in the production
environment. This application was recently migrated from Win2K server to
Win 2003 server. Interestingly enough, it seems to happen with IE more so
than Firefox. But the client is down till this is fixed.

Thanks

Alvin Bruney [MVP - ASP.NET] wrote:

is this a consistent error? if it is transient, you may want to just
ignore it. The fixes for this permutation of viewstate issue isn't really
worth the time and effort investment.

[No one]

No, a single server with one CPU.

Andrew wrote:

is this a clustered environment or web farm?

if so:

http://support.microsoft.com/default...;en-us;Q312906

-Andrew
"No one" <no***@yahoo.co m> wrote in message
news:at******** ****@gandalf.gr ey-net.com...

This is a VERY consistent error, but it only happens in the production
environment . This application was recently migrated from Win2K server to
Win 2003 server. Interestingly enough, it seems to happen with IE more so
than Firefox. But the client is down till this is fixed.

Thanks

Alvin Bruney [MVP - ASP.NET] wrote:

is this a consistent error? if it is transient, you may want to just
ignore it. The fixes for this permutation of viewstate issue isn't really
worth the time and effort investment.

[No one]

Actually, I did this for the test area on the production box. It seems
to be working, but I've not tested it thorougly (I'm traveling for
another client). I have looked into turning the session storage into
using the database. Will this help?

Andrew wrote:

is this a clustered environment or web farm?

if so:

http://support.microsoft.com/default...;en-us;Q312906

-Andrew
"No one" <no***@yahoo.co m> wrote in message
news:at******** ****@gandalf.gr ey-net.com...

This is a VERY consistent error, but it only happens in the production
environment . This application was recently migrated from Win2K server to
Win 2003 server. Interestingly enough, it seems to happen with IE more so
than Firefox. But the client is down till this is fixed.

Thanks

Alvin Bruney [MVP - ASP.NET] wrote:

is this a consistent error? if it is transient, you may want to just
ignore it. The fixes for this permutation of viewstate issue isn't really
worth the time and effort investment.