I had previously had set up a VPN that was working perfectly until yesterday. I tried to log in and received an error message 'The L2TP-VPN server did not respond. Try Reconnecting. If the problem persists verify your settings and contact your admin..'
I have deleted the VPN and set up a new one with the original settings but same outcome.
Internet is a home based wifi which seems to be working fine.
iOS 11.3.1. Deleted and re-created VPN and it doesn't connect. I CAN connect from my Mac just fine. The iOS device has WiFi disabled (as I'm testing from within the zone protected by the Meraki), so it is using the data connection to go out and back in.