We have same problem with only one client like written in:
https://community.sophos.com/utm-firewall/f/general-discussion/130081/authenticate-decrypt-packet-error-packet-hmac-authentication-failed
All other colleagues work the whole day without any problem. First we used SSL VPN Client and now Sophos Conncet - nothing changed. I tried it with same ovpn-file like the affected user at my notebook and it works good.
In the other thread I do not understand the last post from Amodin because the Cryptographic Settings in Advanced Tab are the same for all users:
What could be the problem?
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