TTLS authentication is not working on Ubuntu 16.04 Freeradius 2.2.8

Alan DeKok aland at
Wed Dec 6 13:56:52 CET 2017

On Dec 6, 2017, at 5:36 AM, Smita Selot <SSelot at> wrote:
> I have installed Freeradius (version 2.2.8) on Ubuntu 16.04

  v2 is end of life.  Please use version 3.  It's pre-packaged on Ubuntu.

> and user authentication is working for MD5, PEAPv0 and TLS authentications. However TTLS authentication is failing. I see from the logs that the group authentication is failing.

  The logs say that the server received an invalid ACK during TLS.  It helps to read *all* of the logs.

> Is there some configuration that I am missing?

  Upgrade to v3.

> This is the debug output from running "freeradius -xX":

  Please don't do that.  All of the docs say to use "-X".

  Alan DeKok.

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