The monitor server cannot be connected. Please ensure
1. Virtual Standby build version matches the Arcserve UDP agent version. 2. The network is unavailable
While adding a Virtual Standby task to an existing backup plan, there would be an error on adding the host name (ESX and Hyper-V).
This mismatch happens with the protocol selected while adding the Virtual Standby task
Select the HTTP or HTTPS protocol as per how the UDP agent (monitor server) is configured.
If the monitor is configured with HTTP protocol, the agent also has to be in HTTP. If the monitor server is HTTPS, the agent should also be HTTPS.