I'm getting a "Not licensed" message for a number of sensors I added to the configuration. However, I have not reached the sensor limit for my license. How do I go about fixing this?
Created on Jan 25, 2010 9:57:28 PM by
Last change on Feb 5, 2010 2:08:08 PM by
This article refers to PRTG Network Monitor 8 or later
PRTG Network Monitor is licensed on a 'per sensor' basis, meaning that the license does not limit monitoring to a number of devices. Due to this license mechanism it is possible that under circumstances PRTG Network Monitor will display a "Not Licensed" message. This article explains what to check and do if parts of your sensors in PRTG Network Monitor display a blue status icon and show 'Not Licensed'.
First of all, head to the System | PRTG Status | System Status page of the web-based GUI. You will find valuable information there under Licensing. The important fields are Edition and Activation Status.
If you find 'Freeware Edition (License key already in use)' in the edition field, then PRTG detected another instance of PRTG running with the same license key in your network (which is only allowed for Enterprise Unlimited Site licenses). To find out if this is the case you can try the following:
Open a command line session and use the following commands to find out what other machine is in your way:
cd "c:/program files/prtg network monitor"
"prtg server.exe" SHOWNETUSERS
Note: If you did not install into the default folder please use your installation folder in the first command!
After a few seconds you will see a dialog box that will show all the machine names that run the same license key as your local installation. If PRTG is currently running on your machine, its name will also show up on the list.
Stop the second instance of PRTG and either revert to freeware mode (by removing the license key information from the 'PRTG Server Administrator Tool' and restarting the core service) or uninstall it. Then restart the PRTG services of your original PRTG installation.
If you are running a commercial version and the program reports 'Freeware Edition (Activation Grace Period Expired)' under the "Edition" field or as the activation status, check under Setup | Activation Status from within PRTG. Please be aware that PRTG Network Monitor needs to be activated within 10 days (this is the 'Activation Grace Period') after the initial installation on a machine. As such, if you haven't activated, please try to do so using the automatic mechanism or, if this fails, use the activation by mail option.
Most other cases with sensors showing a 'Not Licensed' status are caused by exceeding the limit of licensed sensors. This can be quickly discerned under the 'System Status' page. You will find also find the number of licensed sensors under 'Licensing', and the current total number of used sensors under 'Database Objects' on the right side of the page. If the number of current used sensors exceeds the number of licensed sensors, all sensors above that limit will be paused automatically with the status 'Not licensed'. In such an instance, please consider an upgrade to a higher edition of PRTG.
Created on Jan 25, 2010 9:59:10 PM by
Last change on Mar 28, 2012 12:04:13 PM by
What if I can't afford to upgrade the number of sensors right now? Can I just pause some of the other sensors? If I removed some of the other sensors I am not using why do these remain "Not licensed?
Your license allows to run the stated number of sensors at a time. For example, with a PRTG Network Monitor 500 license, you can run 500 sensors simultaneously. You can create more sensors than supported by your license, but these will be paused initially. You can then pause other (existing) sensors in order for the new sensors to start monitoring.
Created on Oct 15, 2010 7:55:53 AM by
Last change on Oct 15, 2010 8:09:28 AM by
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