Suddenly, we are not able the QVS on some of our servers (i don't dare to restart the last server that is actually running). I have tried to reinstall the server, but still get "Error 1053: The did not respond or start in a timely fashion."
I doubt it is a license issue, as we are not even able to insert any license/controlnumber/lef..nothing is possible.
We had the exact same problem last Friday. The license had expired about two months ago and we needed to apply the update with a new expiration date, but QEMC did not allow it since the service was not running.
We updated the lef.txt file located in the QlikTech folder (it can be within Program Data or Application Data, depending on the OS Version).