In light of the cloud connection issues related to UniFi Video 3.9.4, we have decided to pull that release and revert back to 3.9.3 as the current GA release.
We would like to sincerely apologize to our user base and to our exceptional community for the inconvenience this has caused and are committed to getting the next release as stable and reliable before it goes to a public release. This is not our best work and certainly not up to our standard of quality.
We have 3.9.5 already in beta testing and are specifically testing the case of UniFi Video disconnecting from the cloud service from many different scenarios. 3.9.5 will resolve this bug by the time it goes public.
If you are on 3.9.4, you can downgrade via one of the following methods depending on your operating system: