OpenVPN and LAN issues

[vgaetera]

@Frood42

connection from R700 to Server A breaks

Why is that?
Diagnose the problem to its root cause.

Routing the client's local network to the VPN network witch change of addressing

The level of complexity of your network requires comprehensive troubleshooting. So you should study appropriate instruments, such as traceroute, tcpdump and iptables. Then collect diagnostics data on the way of your traffic and based on that make a conclusion where the problem is.