What is this?

This knowledgebase contains questions and answers about PRTG Network Monitor and network monitoring in general.

Learn more

PRTG Network Monitor

Intuitive to Use. Easy to manage.
More than 500,000 users rely on Paessler PRTG every day. Find out how you can reduce cost, increase QoS and ease planning, as well.

Free Download

Top Tags

View all Tags

Test notifications work, triggers do not



Our PRTG triggers are not sending emails/SMS, but when you test the notifications, everything comes through fine. Everything was working previously, nothing has changed but it's notifying down OR up.

Anything I could be missing?

change-trigger notification-deilvery prtg

Created on Jul 25, 2013 5:24:24 PM

5 Replies




thank you very much for your KB-Post. Did you check under "Logs"->"System Events"->"Notifications"? Are there any error messages listed towards email notifications (where sensors really went down)?

best regards.

Created on Jul 26, 2013 12:03:11 PM by  Torsten Lindner [Paessler Support]



It says "Status Sending Email: Successful" about 10 mins after a down sensor. Never received any notifications but it definitely shows the sensor as "down".

Created on Aug 2, 2013 5:18:47 PM



Can you please check the logs on the target SMTP-Server? Do you see any hints there, where the mails may did go?

Created on Aug 5, 2013 9:38:36 AM by  Torsten Lindner [Paessler Support]



I was mistaken, the notification that was showing as sent was from a test notification. Here is what is displayed when a sensor is alerting: Host not found. This message indicates that the key (name, address, and so on) was not found. Socket Error # 11001 Host not found. (socket error # 11001)

It never says anything after that in the log about attempting to send a message or anything. It says paused by dependency and then resumed by dependency.

Created on Aug 5, 2013 2:22:26 PM



Can you please send a screenshot of this error message and your Notification Delivery Settings in PRTG to [email protected]? Thank you!

Created on Aug 5, 2013 2:46:32 PM by  Torsten Lindner [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.