Hello!
I use two Zentyal server two different place. I connect them a VPN. (Zentyal to Zentyal) both of them use ADSL connection (PPPoE) and every night, the VPN is disconnect...
which is sure, the problem is the client side. Because if i restart the Client side Zentyal machine (or resave the network settings) it's working again... (if only restart the VPN daemon both side, it's wont work)
The interesting thing that the Client Zentyal it seems connect to VPN (it is display the server domain name and the VPN client IP) but the server side i can't see any connected partner.
Now, i need to restart the network settings every morning and its not so good.