I'm trying to configure ANY VPN to work with an iPad but I can't get anything to work. I found on video on setting up SSL VPN which should be clientless. However, there is no Firewall -> SSL VPN option to check, nor is there an SSL VPN menu option on the left. I believe the latest firmware is installed: 188.8.131.52
If you 'downgrade' the firmware to v1.3 then the SSL VPN re-appears. I had to do the same on my RV320, as like you, I'm having a 'mare' with setting up any VPN.
After 3 different sessions with Support, turns out a reboot of the Router fixed the Easy VPN issue so now IPSec is working. It's a strange little device. I don't think we'll be recommending them to our customers in the future.