Render crashing

[Rareden]

Im trying to render a animation with the integrated 3ds max plugin, it seems to run fine for a few frames then randomly it will stop rendering, it still says rendering in the 3ds max window but no progress bar or image will display and it will stay on the same frame even if i leave it for a long period of time, i presume the renderer has crashed. The scene contains 820k polys which isnt that much since ive used octane to render 5million just fine. Unsure of how to solve this other than reducing poly count further. Help would be greatly appreciated.