With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cwdsiWnmDiscontinuityTime
cwdsi Wnm Discontinuity Time
1.3.6.1.4.1.9.9.509.1.4.1.1.15
This object specifies the vaule of sysUpTime on the most recent occassion when the WNM is registered with WDS.
Back to CISCO-WDS-INFO-MIB MIB page.
IPHost Network monitor allows you to monitor cwdsiWnmDiscontinuityTime on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco wireless switches right now.