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

Random Error PE015 on multiple different device




I have random error Unable to connect: PE015 on multiple different devices.

This problem is really random error, each time with another device and only with WMI sensors

Exemple with WMI sensor, check by 10min:

08:10 => Sensor OK 08:20 => Sensor Error 08:30 => Sensor Ok ... 16:40 => Sensor Error 17:20 => Sensor OK 22:00 => Sensor OK

Are there any detailed logs in PRTG? Why this error is random?


pe015 random wmi

Created on Jun 29, 2017 8:10:16 AM

1 Reply



Hey hjbeit,

Thank you for your KB-posting.

As you can see in our Release Notes we recently released a new stable version which includes several fixes for this issue. So, if you still run a version before, please update your installation.

In case, that you already run the latest version. Please open a new support ticket and forward us a support bundle including all log files. This can be done via the "Contact Support" ribbon in the lower right corner of the web interface.

Kind regards,

Created on Jun 30, 2017 5:43:21 AM by  Sven Roggenhofer [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.