Hi, I think You should try this scenario for checking conectivity:
-check routes on vpn client pc and nethserver:
-check if dns works:
ping 220.127.116.11 what response?
ping nethserver.org what response?
-check where ping goes:
-check sysctl net.ipv4.ip_forward gives You "1"
Maybe solution is bridged insteed of routed mode on nethserver if You have only one NIC but i didn't check that.
But it seems the problem is similar to my problem from my forgotten post:
diagnose: GUI is not creating rules properly or I miss something, any help very appreciated.
Try to post output from:
shorewall show (the ovpn2net chain and related)