There are two different ProctorU services in-use at Boise State: Live+ and Review+. The agent may be looking for your test under the wrong service. You should clarify that your instructor is using Review+, which doesn’t require the test to be listed and scheduled like Live+. If you’re not sure which service your course is requiring, consult your syllabus or ask your professor for instructions.
The best way to avoid technical problems is to complete the compatibility check, as well as any system check assignments created by your instructor before the test. Ideally, this should be done at least once at the very beginning of the term. However, it’s also recommended that you run a compatibility check a few days ahead of every exam (especially if you’re using a different computer or WiFi network).