Everything I have written on Troubleshooting so far.
In OpenText Content Server, background agents do the work people assume the system does by itself. Every one of them needs two separate settings to agree before it runs, and when they disagree nothing fails, nothing is logged, and the work simply never happens.
OpenText Archive Center keeps a plain text record of every request it has ever answered: what was read, when, how long it took, how many bytes. It answers questions about usage, cost and access that nothing else in the landscape can, and almost nobody opens it.
After an upgrade, documents from OpenText Archive Center download instead of displaying. Nothing is wrong with the archive: one HTTP header decides it, the setting has moved into the Administration Client, and a blank frame is a different problem entirely.