Vray for Sketchup low cpu usage when rendering

[arh andrei budala]

**Hello,

I'm using Sketchup 2015 Pro with Vray 2.0 for Sketchup
I have a problem that's recurring every once in a while - vray slows down the usage of cpu at nearly 0%. My computer even enters in stanby.
It can't be about sistem specs, or windows, or anything but vray/sketchup.

Example now:

I'm working on a scene (big scene - around 310 mb) for a week now.
I'm making changes daily and rendering it.
Until last night, everything went fine - the cpu usage was at 100% everytime.
Since last night the porcessor usage went so low, that my computer enters in standby - which never happens when a program is running.

Please help!?

In case anyone needs to be convinced, my system specs:

mb: Asus X99-A
cpu: i7 6950X
cpu cooling: Corsair H110i GT
ram: 32 gbs ddr4 2400mhz cl15 Kingston HyperX Fury
hdd: WD Caviar Black Advanced Format 2TB, SATA III 600, 64 mb buffer
gpu: Gigabyte GTX 1080 G1 Gaming
psu: 1000 W Chieftec - 80+ Bronze
OS: Win 10 Pro**

[arh andrei budala]

So, no one's interested in helping me?! really?! I thought this was a helpful comunity...