Updated 2026-10-02
LockDown Browser Troubleshooting Checklist
Start with the smallest reproducible check before reinstalling anything. This sequence separates Respondus, LMS, network, and NoLock setup issues.
Confirm the required launch path
Open the practice quiz from the same LMS and browser path your institution specifies. A direct LockDown Browser launch may not carry the course or quiz handoff data.
Run updates and system checks
Update the operating system, Respondus client, and NoLock before the test window. Restart after security or permission changes so each process receives the current settings.
Isolate the failing layer
Test the LMS login, then a normal quiz, then the Respondus practice quiz, and only then the NoLock workflow. Record the first failing step and exact message.
Frequently asked questions
Should I reinstall first?
Usually no. Confirm the launch path, version, permissions, and practice quiz first; reinstall only when the application itself is damaged or the vendor directs it.