I have a notification set up in PRTG that is performing an http action to send notifications via slack webhook. Currently every time a sensor is put in an alarm state, the notification throws the following error:
Failed to establish secure connection [Step 0] Error connecting with SSL. Error connecting with SSL. error:140770FC:SSL routines:SSL23_GET_SERVER_HELLO:unknown protocol.
I've confirmed that the probe settings for monitoring requests are set to "auto" in the probe settings for monitoring in the prtg admin console. This issue started occurring out of nowhere last month and the webhooks currently are not working with slack.
Server Service: V184.108.40.2062 Probe Service: V220.127.116.112