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i installed a new server with ubuntu 8.04 lts and freeradius 2.1.0 behind this radius are 2 other radius-server (failover) after configuration i always get an error-message after succesfull login of an user.

Error: Received Accounting-Response packet from client x.x.xx port 1813 with invalid signature (err=2)! (Shared secret is incorrect.) Dropping packet without response.

Fix the shared secret between proxy and home servers.

the shared secrets are the same! to 100%. #adBox3 {display:none;}