I had this issue for months at the beginning of this Year. It is really really annoying you, and I´d almost lost my nerves on it, or maybe had, i don´t know.
Anyhow the Problem is with the Connection between your running Cubase or eLicenser-depending Application, in the case of mart,
and the eLicenser. “Synsopos.exe” is a Program, which synchronize the running Application with the stored Licenses on the attached USB-eLicenser.
So I had this issue for months, and couldn´t figure it out, what it is. But I´ve never had seen on my USB-eLicenser on the whole entired time.
So i´ve fixed anywhen, that sometimes my USB eLicenser-Dongle isn´t alight the entired time. there was sometimes a Pause between, and after hours of struggling to get done with this Problem, i had thought, maybe this is the problem.
And yes it was. I had first find it out, that the USB-Port, in which I ad plug in the eLicenser isn´t really fixed and solid. When i had for eyample attached other USB-powered Devices to that Port, the suppliement of the Power is going sometimes completly away, just because the USB-Port isn´t really solid. The Contacts and the Seat in the System Unit isn´t really good fixed. But I´d read about, it is a general Problem of the USB-Type A-Ports.
So this is for one thing, but…
As soon as after this I´ve noticed also, that my USB eLicenser-Dongle was particular broken. And that was the Problem of it all. I purchased another USB-eLicenser and now more and more the Problem gone away. I got this Problem also til nowadays, just because of my “unfixed” USB-Ports, but at the mean time this Problem is disappeared for now.
Look on your USB-eLicenser-Dongle, while you running your depended Application and see if the Dongle gets unlit, what sometimes could be hard, when your Dongle is on a Tower PC or the connected USB-Port is elsewhere in your Studio.
If yes, Use another USB-Port or try it with a Hub on another USB-Port as well. Check your eLicenser on damages.
If your eLicenser maybe is destroyed, try it with another One or Purchase a new one.
Cubase doesn´t need the License only on the booting Process, it needs it even at anytime you attach a VSTi or VST Effect to your current Project. Or even to keep the VSTi or VST Effect alive, which means for the Anaylizing Process of your CPU.
I don´t know, but in my Opinion i mean, a full-copied Version of Cubase isn´t even possible to run or to use without an USB-eLicenser, just because of piracy or better said the Stealing of the Licenses.
So I think you ever need a Hardware-USB-eLicenser-Dongle to run a Full Version of Cubase. And it´s even not possible to run Cubase for Distance with the Soft-License, which makes my first said Question fully irrevelant and stupid.
Sorry for that