How can I count the access points (APs) connected to a Cisco Catalyst 9800 WLAN Controller using PRTG Network Monitor?
Please see this article: https://kb.paessler.com/en/topic/89669-cisco-catalys-9800-wlan-controller-ap-counting
Users of the Cisco Catalyst 9800 WLAN Controller have faced difficulties in counting connected APs because this controller series does not support some of the required OIDs used by older models. To address this:
1. Use SNMP OIDs: A specific OID, `.1.3.6.1.4.1.14179.2.2.2.1.6`, can provide the status of each AP.
2. Custom Sensor: Create a custom sensor using PowerShell to count active APs from the provided OID list.
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.