So snmp walk is successful, but you are not able to add node into Orion? Could be caused by missing sysObjectID = 188.8.131.52.184.108.40.206 which is required.
>Does that sysObjectID = 220.127.116.11.18.104.22.168 go inthe snmpd.conf file?
Nevermind, I lost my mind for a while there. I have verified the OID above is in the Solarwinds database. Someone who is MUCH better with Linux than I has verified SNMP is running properly on the target box in question.
Still in Orion, add node <test> fails.