Greetings. We have a site running under IIS 7.5 and using Windows authentification. Active Directory is in use.

We found problem on preproduction environment while trying to install local packages. Umbraco v6.1.4 (Assembly version: 1.0.4958.23183)

Local packages loads correctly, extracted packages can be found in umbraco AppData, but when it comes to installing the package site is asking to enter credentials and ends up with following error:

Module: DigestAuthenticationModule

Notification: AuthenticateRequest

Handler: PageHandlerFactory-Integrated-4.0

Error Code: 0x8009030c

Requested URL: http://<site_base>/umbraco/developer/packages/installer.aspx?installing=businesslogic&dir=C:\inetpub\<App_Folder>\App_Data\6e9f1205-355a-4c5a-b52d-7900508200e0&pId=14

Physcial path: C:\inetpub\wwwroot\AvivaIntranetPortal\umbraco\developer\packages\installer.aspx

After this, package shows as installed but it's content is actually not. Test case is package of one new document type and it didn't apper in document types.

We have little control over that machine, but IIS_IUSRS user group have full control permission for <App_Folder> and subfolders.

Could you give me some hints as to what can be wrong?