QSS not stable, already registered 2 times successfully but after few days it become unregistered.
The License Update Software may be corruptted or not compatible with the OS. Please perform the below steps:
1. Right Click Task Bar and select Task Manager, locate a process name "Updater.exe", end the task.
2. Open Windows Explorer, Delete the file C:\QNEQSS\Service\updater.exe adn restart your computer.
If the QSS still display unregistered, Please register again.