![]() Some students have found creating another user account with "Allow user to administer this computer", restarting the Mac and logging with the new user account allowed them to start LockDown Browser. For Macs, you should check settings in System Preferences->Security & Privacy.ģ) We also recommend doing a complete power down and restart of your Mac.Ĥ) For Macs, the "a4 error" can be due to permissions issues with the specific user account on the Mac. ![]() These domains may need to be added as "trusted sites" in security settings on the local computer and may need to be added to network firewalls or routers. It's possible that your computer's security settings are blocking access, or you possibly have a firewall or anti-virus software running on your computer or network that is causing the block.ġ) Temporarily relax all anti-virus and firewall software on the computer and try the exam again.Ģ) Your computer, ISP, or network may be blocking access to the Respondus servers. If your computer and/or network is blocking access to this server, the LockDown Browser session will not be permitted to continue. LockDown Browser accesses this server in order to check if an update has been issued by Respondus. When LockDown Browser starts, it must be permitted to access this server: ![]() ![]() ![]() Error Message: Update Check Failed: Error Code a4 ![]()
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