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Error switch to https port 443



Hello, I'm attempting switch my PRTG server from port 80 to 443 https for run Googles map in the PRTG.

so I go set port 443 at the Server Administrator show me follow messange

"none of the selected IPs could open port 443 which PRTG needs for SSL"

what is ?? how I can solve this problem. I've already unabled my local machine firewall and anti-virus.


prtg prtg9 web-server

Created on Mar 22, 2012 5:49:03 PM

1 Reply



this error message indicates that port 443 is already used by another service/process. You can check that with the following command:

netstat -ano | findstr 443

Best regards

Created on Mar 23, 2012 7:40:44 AM by  Konstantin Wolff [Paessler Support]

Disclaimer: The information in the Paessler Knowledge Base comes without warranty of any kind. Use at your own risk. Before applying any instructions please exercise proper system administrator housekeeping. You must make sure that a proper backup of all your data is available.