Using Windows as a VPN client everything works perfectly fine. When I establish a connection using the integrated IKEv2 client on my Mac (OS X 10.11.6), I get disconnected after eight minutes. Until then it works perfectly as well.
Log on the Mac says:
Failed to generate IKE SA crypto values
Event log on the server says
The reason for disconnecting was administrative settings or explicit request (it says the same when I disconnect manually)
I assume there is a mismatch in encryption methods/ciphers between OSX and Windows Server 2012 R2 RRAS during the rekeying process but I can't find a way to modify those settings on the client.
Unfortunately L2TP is not a viable option. Alternatives like OpenVPN that require a 3rd party client aren't either.
Hope anyone can help.
Thanks in advance :-)
Kind regards, Kevin