yes, yesterday, I re-imaged everything and set it up freshly and separated another issue:
It is related to non VPN and VPN connections which stop working as soon as 192.168.44.4 gets connected to Raspi VPN middleware.
It breaks my head... I really need to get this setup working.
With LAN masquerading on r7800vpn it starts working, but it breaks the existing home network...
I think I need to try the SNAT IP rewrite, but this is double head breaking...