PPPoE Authentication Failure (freeRadius)

Respected All,
We are facing a strange issue ..
On Existing RouterOS (x86) ver. 6.49.8
PPPoE service working fine with freeRadius (user authenticating fine)

On Vew RouterOS (x86) ver. 7.11.2
PPPoE service authentication Failed with same freeRadius .

user = test-klp-1-b
pass = 12345678

Logs @ RouterOS:
RouterOS logs.jpg
Logs @ freeRadius

username pass reply calledstationid callingstationid authdate
test-klp-1 =3DDC=3DFF=3D16=3DBCQ=3DEC=3DBB=3D3Cssx=3DBE=3D85=3D1B=3D94=3D5C Access-Reject 2023-09-07 15:56:02.150909
test-klp-1 =3DB0=3D19=3DD3GQ=3DD0=3DCC=3D3D=3DEF=3DE0hs=3DD6=3DDA=3DF8I Access-Reject 2023-09-07 15:56:09.780410

as
configuration on ver. 6.49.8 & ver. 7.11.2 is exactly same
freeRadius serving both machines are same
ON ver. 6.49.8 (radius authenticating same user)
ON ver 7.11.2 (radius not authenticating same user)


What could be the possible issue .. need support

Issue Resolved.

Radius was behind NAT
NAS entry in DB (freeRadius) is for Public IP.
need to update for NATed IP in DB.

Regards