Error Message When You Try to Connect to Secure Site: Client Certificate Has Expired or Is Not Yet Valid

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This article was written about products for which Microsoft no longer offers support. Therefore, this article is offered "as is" and will no longer be updated.


When you attempt to connect to a secure Web site in Microsoft Internet Explorer, you may receive an error message similar to one of the following:

HTTP 403.17 Forbidden:

Client certificate has expired or is not yet valid
HTTP 403 ForbiddenYou are not authorized to view this page


This behavior can occur if the date setting on your computer is incorrect.


To resolve this issue, reset the date on the computer. To do this, follow these steps:

  1. Quit all running programs.
  2. Click Start, point to Settings, and then click Control Panel.
  3. In Control Panel, double-click Date/Time.
  4. In the Date/Time Properties dialog box, select the current date and time, click Apply, and then click OK.

Article ID: 301803 - Last Review: Jun 19, 2014 - Revision: 1