Transfer the response file back to the air-gapped PRTG server to complete the process. 4. Upgrading Your PRTG License Key
PRTG is primarily licensed based on the number of you use, not the number of devices. A sensor is defined as a single metric being monitored—for example, bandwidth usage on a port, CPU load on a server, or available disk space.
Your "license key" is only required for paid tiers. The free version works indefinitely without any key entry.
Choosing the right license depends on how many devices you have and how granularly you want to monitor them. 4. Upgrading or Renewing Your License prtg network monitor license key
: Use the PRTG Administration Tool directly on the Windows host machine via the License tab.
, you receive a key via email that unlocks unlimited sensors for 30 days. If you don't enter a paid key after that, the software automatically reverts to the Freeware Edition , which supports 100 sensors Sensor-Based Logic
: To enter or update your key, log into the PRTG web interface and navigate to Setup > License Information . Click the Change License Key button to input your credentials. Default Login Transfer the response file back to the air-gapped
The "Validate" button spun for an eternity. The server room seemed to grow quieter, the fans slowing as if holding their breath. Validation Successful.
: If you have purchased a license, your key is typically located on the License Certificate sent via email from Activation
A 100-sensor limit is ample for smaller environments, allowing you to monitor about 10 devices if you use roughly 10 sensors per device. For a small office, a home lab, or a personal network, this free license is extremely powerful. You gain access to most of PRTG’s primary features, including: A sensor is defined as a single metric
Look at the top bar of the PRTG Web GUI to see your active vs. allowed sensor count.
Enter your License Name and License Key in the screen. Choose Offline Activation .
A PRTG license key is an excellent choice for IT teams that want a fully-featured tool
As your network grows, you will likely outgrow your initial sensor tier. Paessler makes upgrading seamless.