With IPHost Network Monitor you can run simple snmp requests against a D-Link device in your network.
ringStationControlOrderChanges
ring Station Control Order Changes
1.3.6.1.2.1.16.10.1.1.8
The number of add and delete events in the ringStationOrderTable optionally associated with this ringStationControlEntry.
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IPHost Network monitor allows you to monitor ringStationControlOrderChanges on D-Link device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring D-Link access points right now.