Recently I am unable to render any project using my Quadro K2200 Graphics card.
All the renderings happening by software only.
I have updated Drivers of GPU... now using V. 398.26
Windows updated to the latest available version.
Adobe Suit also updated to 12.1.2 (built 69).
but could not use GPU for rendering. It's taking a very long time to render sequences in software only mode.
Do not count on Windows to be fully up to date when it comes to device drivers
Go to the vendor site to be sure you have an updated driver for your graphic adapter
•nVidia Driver Downloads http://www.nvidia.com/Download/index.aspx?lang=en-us
There are also intermittent reports that the newest driver is not always the best driver due to driver bugs or compatibility issues, so you MAY need to try an earlier driver version