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SNMP v3 traps failing "Bad trap packet received: Decryption of incoming packet failed"

Hi all,

We are having trouble receiving traps from Aruba 207 access points. We configure the devices with SNMP v3 and when we add the APs as nodes the credentials test successfully and the nodes are added/polled without issue. However, we continue to receive the following error messages in regards to traps: Bad trap packet received from Node 10.1.1.2. Error description : Decryption of incoming packet failed (local user credentials are not the right ones or the packet is malformed).

I've tried changing the credentials for individual APs and re-adding them but the bad trap error continues to appear.

Here's the GUI for the SNMP config on the Arubas

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Any help is appreciated, thanks.