What ports does PRTG use to monitor? In DMZ how can I monitor? I am trying to monitor a device that is in DMZ but I can not check the sensors, add a local account with the same user and password as in my PRTG console but I can not make functions, know something that may be passed, I want to request the opening of ports to rule out a block in the Firewall but I don't know the monitoring ports. Thank you. Greetings.