Article ID: 740, created on Oct 6, 2008, last review on Apr 30, 2014

  • Applies to:
  • Plesk 10.x for Windows
  • Plesk 9.x for Windows
  • Plesk 8.x for Windows
  • Plesk 7.x for Windows


Unable to login to FP Webadmin from the server itself and error 401.1 - Unauthorized: Logon Failed is displayed.


This is a well known problem.  Please find more information in Microsoft support pages

c45acecf540ecd42a4bbfb242ce02b1d a914db3fdc7a53ddcfd1b2db8f5a1b9c 85a92ca67f2200d36506862eaa6ed6b8 c0c38d2367acfa8909699e0b34b01dea aac4a8fcd879de03758354e15495d69a c796c01d6951fa24ed54c7f1111667c6 56797cefb1efc9130f7c48a7d1db0f0c

Email subscription for changes to this article
Save as PDF