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Windows Integrated Authentication is enabled on the Exchange virtual directory on the Exchange server, but Kerberos is disabled via the IIS metabase.?

April 26, 2017authentication directory disabled enabled exchange Integrated Kerberos server virtual Windows

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Windows Integrated Authentication is enabled on the Exchange virtual directory on the Exchange server, but Kerberos is disabled via the IIS metabase.?

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3. Kerberos is enabled, but IIS may return HTTP Status 401 every 30 Days when using Kerberos on Windows 2000. 4. The TMP/TEMP environment variable on the Exchange server is not pointing to a valid directory or there is not enough disk space or the user performing sync does not have access to the TMP/TEMP folder on the Exchange server. For large sync requests, IIS uses temporary storage. 5. Large sync requests could exceed the default size limits for requests sent to IIS. 6. Sync state on the device is corrupt.