Google Chrome displays "Invalid Server Certificate" when attempting to browse to the UDS logon URL

• Google® Chrome
• Universal Device Service

This error message might occur for one of the following reasons:

1. Windows® 2003 doesn't know how to display sites using SHA2 certificates
2. Windows XP doesn't know how to display sites using SHA2 certificates

Cause 1

The UDS administration page uses a self-signed certificate that was generated using a SHA2 signing algorithm. By Default Windows 2003 does not know how to process SHA2 certificates.

Resolution 1

Microsoft has released a hotfix that adds SHA2 support to Windows 2003 servers. This hotfix is not available through Windows Update and must be requested from Microsoft through KB968730. Once the hotfix has been installed and the system rebooted the site should load correctly.

Cause 2

The UDS administration page uses a self-signed certificate that was generated using a SHA2 signing algorithm. Some versions of Windows XP do not support SHA2 certificates.

Resolution 2

Microsoft added SHA2 support into Windows XP in Service Pack 3. Updating Windows XP to Service Pack 3 will allow the page to be loaded correctly.

If you do not want to update all hosts in your environment running older Operating Systems you can remove the certificate that was created during installation and import a new certificate using the older SHA1 signing algorithm. Please follow KB31084 to accomplish this.