OpenConnect-GUI: A record packet with illegal version was received.

[Niels Peen]

>> 2014-11-02 17:54 POST https://XXXXX/
>> 2014-11-02 17:54 Attempting to connect to server 123.123.123.123:443
>> 2014-11-02 17:54 SSL negotiation with XXXXX
>> 2014-11-02 17:54 SSL connection failure: A record packet with illegal version was received.
> 
> The cases that this can happen is when there are no commonly supported
> protocols, or the peer doesn't correctly set the TLS record versions.
> That's almost impossible to occur between two gnutls peers. Could that
> again be related to a firewall that modifies the packets sent/received?

Possible. The user turned off their firewall (ESET), but I’m not convinced 
that turning it off completely restores normal behaviour.

Niels