2 days ago · Primary and Secondary Protocols First, it is important to understand that when a Horizon Client connects to a Horizon environment, several different protocols are used, and a successful connection consists of two phases. The. The Fix. The apparent delay "Authenticating" or "Logging In" is caused by a Wake On LAN packet being sent to an unmanaged physical workstation that has the VMware View Agent installed. This is occurring because the system is powered off. After powering on all unmanaged View agents running on physical computers, the issue should be resolved.