hello,
in the "more" settings, do not enter the ip adresses of the PCs which will use the connection.
instead, enter the ip adresses of the Server which will be accessed by the pc:
example: you want to use an US based server which offers music only for US based customers:
find out the IP Adresses which are used by the server with nslookup.
then enter these adresses in the "more" section, with a 32 Bit netmask.
This is not an easy thing, since more the one server might be used, maybe, enter a 24bit netmask instead, then the chance is better that other servers which are probably neeeded are automatically included.

Also, do NOT use a remote network mask with 0.0.0.0 this will not work with the router, because you cannot use more then 1 default route, instead, use the 255.255.255.255 netmask which will only route traffic through the connection which you specify by the "more" settings.

The VPN concentrator of vyprvpn uses its own private address space. If this overlaps with your local network address space, no communication will be possible. you can check that after the connection is brough up in the routing table of the draytek.
If if overlaps, change your local Adress space from (example) 192.168.1.0/24 to 192.168.77.0/24 or whatever is not in use by vyprvpn.

If you got a connection, then, it is not needed to check with a software VPN connection if your password is ok.