Ports for LRE 2020.x and above are

On LRE Server:

• Ports 80 (if http), 443 (if SSL/ https) and 8731, 54245, 54345, 8086, 5876
• Database port (default to databases 1433 for SQL or, 1521 for Oracle)
• Ports 8888 and 8080, for LRE to SiteScope connection
• Port 8090 for LRE to AppDynamics connection

On LRE Host:

• Ports 80, 1433, 8731, 3333, 54245, 54345, 8086, 8182, 5876
• VTS Ports as define in VTS 2021
• any needed for access to AUT
• Port 8090 for LRE host to AppDynamics connection

Standalone Load Generators:  (not for LRE host with role of LG only)

• 80, 54245, 54345, 8182,
• Any to access to AUT
• 443 (if connecting to a MI Listener over a Firewall)

Port 5876 new for LRE 2020.x and above (used for communication with the LoadRunner Backend Service)