I have just been trouble shooting a scene with a similar problem.
I eventually narrowed it to the scatters. I had multiple proxies (plants, grass, bushes, palms etc) being scattered in multiple coronascatters. Two of them seemed to crash the scene in one camera. Only those two had proxies that were scaled before being scattered. Un-proxy and Reset XForm on those objects and it seems to be stable.... This took two people two days to troubleshoot. Hope it helps.
Ah. Thought Id fixed it, I havent. Same problem. Goes to about 35 mins using 35% of 128gig of RAM then memory usage spikes to close to 100%, stops making progress in render, eventually crashes.
and yes, I have Teamviewer installed which is used periodically. Just tried rendering with Teamviewer shut down, no difference.
ok, you can ignore my participation here, we had a bad model downloaded from a stock site.