Every time my phone switches between networks (e.g. 4G to Wi-Fi) the established PPTP connection drops.
I know there is a feature called Always-on VPN, but that seems to only apply to L2TP or IPSec connections. When I select that option it says "Select a VPN profile to always stay connected. Network traffic will only be allowed when connected to this VPN." However, the only option listed is "None", even though you can clearly see a PPTP config behind this window.
I am attempting to use proXPN service in particular but suspect this problem is generalized to PPTP sessions. For what it's worth the phone is running Android 4.3 and has not been rooted.
Any suggestions or advice would be appreciated.