TestNav usually displays this error due to network connectivity problems. Follow the instructions in the error message. If given the option, you can choose a different customer.
Verify the network connection, and try again. If you cannot connect after the second attempt, close TestNav.
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- Network
- The testing machine is connected to the school's network.
- Ethernet cables or wireless connections, routers, and switches are in place and functioning.
- TestNavconfiguration on administrative site
- The administrative site has the accurate IP address and port configurations for the proctor caching computer.
- If in use, proctor Proctor caching computer
- Proctor If in use, proctor caching computer is on and running.
- Both ports 4480 and 4481 are open in the firewall on the proctor caching computer.
- The testing machine is on the same network subnet as the proctor caching computer.
- The administrative site has the accurate IP address and port configurations for the proctor caching computer.
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