Since we moved from IIS 7.0 to IIS 7.5 the Windows Authentication doesn't work anymore from remote requests. If I open the website on the webserver everything works fine.
web.config:
<authentication mode="Windows" />
<identity impersonate="true" />
<authorization>
<deny users="?" />
<allow users="*" />
</authorization>
IIS Settings:
Authentication (enabled): ASP.NET Impersonation, Windows Authentication (all others are disabled)
ApplicationPool: Managed Pipeline Mode -> Classic, Identity -> ApplicationPoolIdentity
Failed Request Trace:
MODULE_SET_RESPONSE_ERROR_STATUS
ModuleName: WindowsAuthenticationModule
Notification: 2
HttpStatus: 401
HttpReason: Unauthorized
HttpSubStatus: 1
ErrorCode: 2148074254
ConfigExceptionInfo:
Notification: AUTHENTICATE_REQUEST
ErrorCode No credentials are available in the security package (0x8009030e)
Any suggestions?