gtpc_ltd wrote:
Draytek 5 - TCP/IP network settings - Local Network IP (of 10.0.0.0) was used rather than the network specific IP of 10.1.3.0.
And the same on the Sonicwall for the VPN Network Object (10.0.0.0 was used).

Interesting - I didn't really look at the IP settings, because it wasn't getting that far.

I note with interest, that the settings in that PDF show IKE V2 and AES in place of 3DES - are you sure it wasn't one of them that made it burst into life? :?

Honestly, no idea, not my area of flaxen meadow.
It works, and I'm still awake!!!!