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Troubleshooting Compass
If you are having testing issues, check the system configuration tips below.
You must apply these settings to any proxy, firewall, content filter, or other
security device that is set up on your local machines or local network. If your institution
is part of a larger network, such as a district, county, or other parent institution, you must
provide this information to your network administrators. Also see our full technical
requirements list for Compass for Windows.
Ensure that HTTPS Inspection is turned OFF. This can be very resource intensive,
as it decrypts and encrypts each packet, and it is typically turned on by default
with most firewalls, so it is important to check before testing.
Check for any cap limitations on your HTTP and HTTPS communications. If either or
both are capped at a certain MB limit, the limitation could affect testing.
Ensure the HTTP (80), HTTPS (443), and TCP (56774) ports are fully opened and can
communicate freely.
Check that the following IP addresses (not a full list, see our Tech Requirements
page) are set as approved/unblocked and given the highest priority:
• 159.182.30.18 | www.certiport.com
• 159.182.31.253 | nuget.certiport.com
• 93.191.169.139 | Additional Security IP
• 159.182.30.17 | downloads.certiport.com
• 159.182.30.17 | verify.certiport.com
• 206.188.17.0/24
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Troubleshooting