Sudden loss of functionality is attributed to two factors:
1. License expiration.
2. Installation of database patches, operating system upgrades, or anti-virus software.
Consequently, users take the following action:
1. Search their entire machines for expired, temporary licenses.
2. Delete temporary licenses.
3. Send permanent keys to OpenLink Product Support for review.
4. Ascertain whether or not patches, upgrades, or anti-virus software has been applied to the affected machine.
OpenLink Product Support may not have immediate answers for problems caused by patches, upgrades, or anti-virus software. Specialized testing may be needed.