Tried using the WR21 wizard but its questions are not familiar and are different than let’s say an iPhone/Android VPN connection which does work with our Cisco ASA firewall. This is the info we have to work with:
public IP of firewall
preshared key
group name
VPN account
VPN account password
WR21 FW Ver is 5.2.15.4 (June 22, 2016)