Installing InCommon and USERTrust Certificates On Your Computer (Mac and Windows)


Plan to use PittNet Wi-Fi or connect your computer to a wired network port in a regional campus residence hall or public area (like a classroom or conference room)? You will need to install network certificates. Network certificates are used to create a secure connection between your computer and Pitt's servers, adding an additional layer of protection for data and your device. These instructions explain how to install the certificates manually on your Mac or Windows computer. Once the certificates are installed, configure your Windows or macOS operating system.

Before installing the certificates and configuring your computer manually, visit our page on PittNet Wi-Fi and wired networks to learn how to complete these steps.



  • Creates a safe, secure user experience
  • Protects your and Pitt's data
  • Encrypts browser-to-server and server-to-server communications



Get Started in 3 Easy Steps


Download the Certificates 

  1. Log in to the Software Download Service via My Pitt (
  2. Choose one of the following options:
    • Mac Users-enter InCommon Certificates for Mac in the Search box and click the Search icon.
    • Windows Users-enter InCommon Certificates for Windows in the Search box and click the Search icon.
  3. Click the InCommon Certificates for Mac or the InCommon Certificates for Windows link.
  4. Click the Download button.
  5. From the Download links accordion click the file link.
  6. Click Save File, then OK.
  7. Locate and unzip the file. The certificates, will be contained in a folder called 2020_Certs.


Install the Two Authority Certificates

There are two certificates that are included in the downloaded zip file–Comodo RSA Certification Authority and Sectigo RSA Domain Validation Authority. Repeat the process below to install each of them on your device.

Authority Certificate Installation Process


Install the Two UserTrust Certificate

There are two USERTrust certificates that are included in the downloaded zip file–SHA-2 Root USERTrust RSA Certification Authority and USERTrust RSA Certification Authority. Repeat the process below to install each of them on your device.

USERTrust Certificate Installation Process


Related Information

Frequently Asked Questions


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Article ID: 124
Mon 7/24/23 1:32 PM
Tue 2/13/24 1:21 PM

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IDENTITY AND ACCESS MANAGEMENT A digital certificate is an electronic signature that establishes your credentials when doing business or other transactions on the Web.