Mobile VPN down after upgrade to 2.3.4

[rockpaper]

Hello,

Using SG-2440 device.

Previous version 2.2.6
Upgraded to 2.3.4-RELEASE-p1 (amd64)

All site-to-site IPSec tunnels are still working
but mobile client VPN's afre no longer working

Yesterday, on v 2.2.6, I was able to use Shrew Soft to connect to my pfSense firewall. I used one of the road warrior guides as my basis.

I upgraded last night to 2.3.4-RELEASE-p1 (amd64) and now cannot connect.
The error I see is
  no shared key found for '139.x.x.x'[139.x.x.x] - 'rockpaper'[1.x.x.x]

Note that yesterday (v2.2.6) the identifier was in the format rockpaper@company but I created a new shared key today wth just 'rockpaper' as teh identifier.

I have tried both enabling and disabling the Unity Plugin

All site-to-site IPSec tunnels are still working

any assistance woudl be appreciated