title: Get value from agent failed: TCP successful, cannot establish TLS to ][0.0.0.0]:10050]: connection closed by peer
body: <p>The color of ZBX Availability is changing into red from green and getting following error message on Zabbix Active Check monitoring: </p>
  
  <p>"Get value from agent failed: TCP successful, cannot establish TLS to ][0.0.0.0]:10050]: connection closed by peer"</p>
  
  <p>Please help.</p>