Cisco C3560CX SNMP v3 - can't authenticate

I was hoping someone could review the steps I have taken and see if I did anything obviously wrong. Any help is much appreciated.

Steps taken:

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1) Reviewed Process - https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst_digital_building_series_switches/software/15-2_7_e/b_1527e_consolidated_cdb_cg/configuring_simple_network_management_protocol.html

2) SSH'd to a WS-3650CX-12PC-S

3) confirmed software version - 15.2(4)E1

4) retrieved EngineID for our SolarWinds intstance - 3

5) configuration ran based on document linked above:

enable configure terminal no snmp-server snmp-server engineID remote [10.10.10.10](https://10.10.10.10) 300000000000000000000000 snmp-server group monitorgroup v3 priv snmp-server user solarwindsuser2 monitorgroup remote [10.10.10.10](https://10.10.10.10) v3 auth sha R3dactedPassw0rd priv aes 128 R3dactedPassw0rd2 end 

6) Attempted to add node in solarwinds using SNMPv3 with theses settings:

SNMP Port: 161 SNMPv3 Username: solarwindsuser2 Authentication Method: SHA1 Authentication Password: R3dactedPassw0rd Encryption Method: AES128 Encyption Password: R3dactedPassw0rd2 

7) Test Failed, SolarWinds states node did not responded, node does not respond with the supplied read/write SNMPv3 credentials . Reviewed SNMP debug on switch:

 SNMP: Packet received via UDP from [10.10.10.10](https://10.10.10.10) on Vlan111 SNMP: Report, reqid 62037, errstat 0, erridx 0 usmStats.4.0 = 6 SNMP: Packet sent via UDP to [10.10.10.15](https://10.10.10.15) SNMP: Packet received via UDP from [10.10.10.10](https://10.10.10.10) on Vlan111 SNMP: Report, reqid 2147483647, errstat 0, erridx 0 usmStats.3.0 = 6 SNMP: Packet sent via UDP to [10.10.10.10](https://10.10.10.10) 

Does any one have any thoughts as to why I am unable to authenticate?