RADIUS authentication fails even if "Access-Accept" packet is received from server

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Technical Level

Symptoms

RADIUS authentication fails even if "Access-Accept" packet is received from the RADIUS server.
The /var/log/secure file contains errors

DATE TIME lab1 sshd[8781]: pam_radius_auth: Got response from RADIUS server DATE TIME lab1 sshd[8781]: Failed password for testuser from 10.1.1.5 port 54644 ssh2
Non-Working Packet example

Radius Protocol
Code: Access-Accept (2)
Attribute Value Pairs
AVP: l=8 t=User-Name(1): testuser
AVP: l=8 t=Class(25): 1111111f7073
AVP: l=38 t=Class(25): 111111111a696e662d6e733030372d6377792f3232313439...

Working Packet example

Radius Protocol
Code: Access-Accept (2)
Attribute Value Pairs
AVP: l=9 t=Class(25): 1111111126368

Solution

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