I have a couple of win 2008 r2 x64 serveres on web farm, using iis shared configuration,
machine keys are the same on both servers, generated & IsolateApps
enableViewStateMac = False
viewStateEncriptionMode = Never
I´m getting this error randomly, application is running on a win 2003 R2 x86 server without any problems, its a asp.net 2.0 web site
Event code: 4009
Event message: Viewstate verification failed. Reason: The viewstate supplied failed integrity check.
Event time: 20-03-2013 18:58:33
Event time (UTC): 20-03-2013 21:58:33
Event ID: 6aff2c1e0bb341c4bd632dd8fd5b3ccf
Event sequence: 53
Event occurrence: 17
Event detail code: 50203
Application information:
Application domain: /LM/W3SVC/2/ROOT-1-130082900876099007
Trust level: Full
Application Virtual Path: /
Application Path: \\machine\IISsharedConf\Content\www\Mega\
Machine name: xxxx
Process information:
Process ID: 2692
Process name: w3wp.exe
Account name: IIS APPPOOL\wwwXXXX
Request information:
Request URL: http://xxxxxxxxxxxxxxx
Request path: /xxxxxxxxxxxxxxxxxx
User host address: 192.168.253.27
User:
Is authenticated: False
Authentication Type:
Thread account name: domain\user
ViewStateException information:
Exception message: Invalid viewstate.
Client IP: 192.168.253.27
Port: 5750
User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)
PersistedState: 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
Referer:
Path: /xxxx.aspx
Custom event details: