I have been struggling with this issue for a while and hoping smeone here can help.
I cannot seem to establish an ipsec tunnel with my zyxel router. My settings in the zyxel router and zyxel vpn client both match and are correct. When trying to connect, it show no error messages at all in the router logs.
It seem as though my router is not recieving any messages from the client.
I have contacted my ISP and they have said that no ports are being blocked from their end. I have totally removed the firewall in my router and still there is no messages in the router when trying to establish a tunnel.
Has anyone seen this before and can someone please advise