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When attempting to login to our Citrix services web page we receive an "authentication failed" message from the web page and a "SEND FAILED" Radius response from the security server:
Fri 24 May 2013 14:11:47 SEND FAILED Radius response: Authentication Acknowledged, User-Name: jsmith, Request ID: 0 Session ID: CE58B2896575C701 Fri 24 May 2013 14:11:47 Failed to send reply for jsmith
원인
Firewall issue
해결 방안
Issue was resolved with firewall vendor. A default route had been changed and once put back everything worked again.