Cisco Bug: CSCvn76033 - 5500 WLC SNMPWALK randomly fails with Error: OID not increasing ref: https://quickview.cloudapps.cisco.com/quickview/bug/CSCvn76033
Work around suggested from Cisco is to put -Cc while performing SNMPWALK.
Solarwinds tech support confirmed that currently such an option is not available.
This is the request to include -Cc for SNMPWALK, SNMPGET etc.
/usr/sfw/bin/snmpwalk -v 2c -Cc -c <SNMP Community> <Device IP> OID