I've set up a L2TP/IPSec VPN server with pre-shared keys, and everything works fine when I connect to the VPN manually.
However, when it's set to be the always-on VPN, everything changed. It seemd that no traffic was sent to the Internet anymore. If I opened a URL, the browser would return
Error code: ERR_CONNECTION_REFUSED.
Is there anything wrong with my configuration of my phone or the VPN server?
I'm running android 4.4.4 with a recent CM nightly build.