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PRTG Network Monitor

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Unable to Add Class B Network range




Today i installed The Train Version,But i am unable to add Class B Network range 172.XX. only i am getting Option for Class C Network 192.XX.. Do i need to change any settings .???

Regards, Sri.

auto-discovery class-b prtg

Created on Nov 14, 2014 9:14:34 AM

1 Reply




You can go to any group in your PRTG device tree and click on the Settings Tab. Enable e.g."Automatic device identification (standard, recommended)" and IP and subnet (IPv4). Enter the network address e.g. for your class B network.

Afterwards you can start the auto-discovery with a right-click on the Group name | Auto-Discovery | Run Auto-Discovery.

Best regards

Created on Nov 14, 2014 10:23:09 AM by  Felix Saure [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.