SNMP Issues

[valnet]

Running firmware 1.5.5 on WS-12-250-DC (had same issue on WS-12-DC), standard OIDS for switch interfaces, CPU, and Memory are responding, but all OIDS for the Netonix and POE MIBs are not responding, PRTG says "No such instance (SNMP error #223)"

Oddly, if I use an MIB browser, I can SNMPWALK the MIB and see valid data, so it does appear to be responding correctly in some cases.

As the device is obviously reachable by PRTG and SNMP is configured correctly (it can ping and SNMP query all the standard network OIDs), I'm scratching my head as to why the Netonix OIDs would respond in an snmpwalk, but not to PRTG.

Suggestions?

[valnet]

I can add OIDS directly, but the OIDLIB in PRTG definitely doesn't work after importing the Netonix MIB.