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

round trip sensor mail used by other round trip sensor



One of our round trip sensor is always green. Investigation has shown the sensor is using other (foreign) round trip mails as proof. It seems that PRTG "ignoring" its own checksums of each sensor. But only for this sensor. All other (earlier created) round trip sensor work as should. No mail with checksum in time limit, sensor gets red. (Thats why other round trip sensor had a chance to get red as long as the new one was active.)

Is there any other way "to fix this" other than create for each sensor its own mailbox as mentioned in manual?


mutliple prtg roundtrip

Created on Nov 23, 2022 10:09:08 AM


Nobody has replied yet

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.