Could you please tell me how did you configure your edgerouter for l2tp over ipsec? (v.1.9 here)
I've followed the documentation from ubnt and the community, to setup the VPN, but is not working.
The problem I'm having is something related to xl2tpd service (according to the logs)
Critical; RouterEdge; daemon; xl2tpd; setsockopt recvref[30]: Protocol not available