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I can't add sensor SSL Certificate on my website.



I've added websites to add SSL Certificate monitoring sensors, but I get some errors below:

Error connecting with SSL, Error connecting with SSL, error:14077410:SSL routines:SSL23_GET_SERVER_HELLO:sslv3 alert handshake failure.

PRTG version

Could anyone help fix the issue?

prtg sensor ssl

Created on Nov 29, 2022 3:57:27 AM

1 Reply



Hi, in the Device in PRTG are you using the website URL or the IP address of the webserver? You can try with IP or make sure yo enter the DNS exactly as it is in your certificate. Try without entering anything on the Virtual Host (SNI Domain) setting. If you leave it blank it will use the same DNS name that you entered in the IP address field of the device.

If this is a public site you can open a ticket with [email protected] and give is the site URL so we can test from our servers.

Created on Dec 2, 2022 4:23:40 AM by  Jonathan Mena [Paessler Technical 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.