Trying to setup VPN (again)

I am trying to setup S2S VPN with Azure. I had this working before using a DLINK DSR-250N - but have had to change device due to change of ISP and need for VOIP on thr router. Now using Iinet Buddi Lite - which support IPsec VPN. Recreated gateway and think I have put in same parameters as last time. But it never connects.

Here's the router settings:

Tunnel Mode: ESP

Key Exchange method: Auto (IKE)

Pre-shared key XXXXXXXX

Perfect Forward Secrecy: Disable

Phase 1 Mode: Main

Encryption: AES-256

Integrity: SHA1

Diffie-Helman 1024 bit

Key Lifetime: 28800

Phase 2:

Encryption: AES-256

Integrity: SHA1

Diffie-Helman:1024 bit

Key lifetime: 3600

Any idea what I have got wrong? I have double checked GW IP numbers, subnets etc and cant see anything wrong.

Thanks