With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cwrSyncFailureCount
Cisco Wireless Sync Failure Count
1.3.6.1.4.1.9.9.136.1.6.2.1.10
This object represents number of times the link attempted to synchronize with the far end but failed to.
Back to CISCO-WIRELESS-IF-MIB MIB page.
IPHost Network monitor allows you to monitor cwrSyncFailureCount on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco switches right now.