Vpn Site to Site

Good Morning, 

I am trying to establish a VPN site to site to my customer, he has a Jupiter Gateway. 

Already have configured all data from the Phase 1 and Phase 2 correctly, however failed to establish the VPN, my customer tells me that he sees nothing wrong with the LOG.

I would like to check if something is happening, is possible to see a log in the Azure portal? Can I see why attempted VPN connection fails?

How can I get some information LOG or somewhere? 

Thank you. 

Obando Jonathan Rozo