(SAOS 16.5.0.xyz) 393x/5150 platforms that wor5ks, using MGSoft MIB broswer? When I try to Query the device. I receive "Synchronize: SNMPv3 report received from remote agent." with the statement "Security model: USM 1: usmStatsUnknownEngineIDs.0 (Counter32) 43" I've created 2 SNMPv3 users on a 3931. Neither seems to work for me.