I have set up the VPN from MAC, to a new 2920. The VPN connection is working fine on PPTP and L2TP with IPSEC.
However, while the VPN works and lets me connect to the DrayTek router, 192.168.1.1, via the VPN. I cannot connect to any other IP addresses on the LAN.

I saw one post that suggested doing a factory to resolve this problem.

Any help in identifying the incorrect setting and avoiding a full reconfiguration would be appreciated.

what do you mean by "cannot connect"? e.g. ping IP address ?

By cannot connect I mean, cannot ping, traceroute....

The IP settings of the client appear to be correct, same subnet etc.

What is the IP Address of the local network where the client is located ?
if your Subnet is also 192.168.1.0/24 you have to change the subnet on one of the sides.

Also, there is/was a firmware bug (?) in the draytek software, which appeared especially with MacOSX:
Connection was brought up, but connectivity was there for about 20 seconds. After that the connection was shown as up, but no traffic went through ist. This is about 12 month ago. I raised a ticket, but, I dont know if this ever was fixed.

Thanks that has done the trick. The MiFi was giving out the same DHCP subnet as the target VPN network.