I do recommend to carry out the Backburner timeout fix from Josh_BSS in the Autodesk forums. This works around the preset 60 minutes timeout, that cuts off longer renders.
Download Installers Here are the most recent installers of Corona Renderer. What's included • Corona Renderer, which integrates into your 3D software (varies by installer) • Corona Distributed Rendering Server (3ds Max; for Cinema 4D, native Team Render is used) • Corona Licensing Server • Corona Image Editor • Corona Standalone • Corona Material Library (downloaded from our server during installation; currently 3ds Max only) These are the latest commercial releases of Corona Renderer. They come in a universal installer which lets you activate Corona in both FairSaaS and Box license mode, or in the 45-day unlimited demo mode if you want to just try out Corona. The demo has no resolution limitations or watermarks, and you can even use it for commercial purposes.