SSL connection fails with pulse protocol

Daniel Lenski dlenski at
Thu Sep 1 17:04:32 PDT 2022

On Thu, Sep 1, 2022 at 3:42 PM Ian Cornelius <ircornelius at> wrote:
> This error began to appear about the time that Pulse Secure was acquired
> by Ivanti.

Almost certainly related to the changes in the Pulse configuration
packet from the 9.1R14 and 9.1R16 server versions. (These are
mystifyingly vestigial/useless changes… but that's what we've come to
expect from Pulse. 😂)

> I am running OpenConnect version v9.01-0+9.1 on Ubuntu 20.04.5.

You'll need to build a very recent development version from the
'master' branch of

Thanks to contributions by users of Ivanti/Pulse servers with versions
9.1R14 and 9.1R16 (see and,
OpenConnect *should* now support those versions of the server.
Feedback from additional users would be very useful.


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