Why is AEGP Plugin Cinema 4D CINERENDER returning error "connection failure (5027:12)"?

[ballyd]

I use Windows 10 and has the latest version of After Effects to date. When I try using C4D I get the popup error message shown below. It very frustrating especially when I have a critical project working on. I need help like yesterday.

[Mylenium]

Make sure the connection isn't being blocked by your firewall or other tools.

Mylenium

[Kevin-Monahan]

Hi BallyD,

Sorry about the error. Did troubleshooting your firewall settings solve the situation? Please let us know.

Thanks,
Kevin