Apple recently released the latest Release Candidate version of iOS 16.3, iPadOS 16.3, tvOS 16.3 and some other OS. Apple also updated its AirPods (AirPods 2, AirPods 3, AirPods Pro & AirPods Max) and HomePod.
Apart from this, according to the latest report, some Apple TV 4K users complaining that there is a connection problem with the Siri Remote on Reddit, Apple Support, Twitter, etc. Users have not yet received an official reply on any platform, so they are doing a temporary fix to this problem by restarting the remote control/set-top.
According to MacRumors, the root cause of this issue is a Bluetooth connection failure, even though the Siri Remote and the Apple TV 4K were very close to each other. In the comments section on Reddit, some users reported that the Siri Remote keeps disconnecting from time to time.
Some users reported that the issue did not occur when users controlled the Apple TV 4K using the Remote app on their iPhone or using the TV remote via HDMI-CEC. The issue only occurred between the remote and the Apple TV 4K. The exact cause of this problem is not yet known but it is happening after upgrading to tvOS 16.2 update.