I had the exact same problem. I couldn't connect via iOS 11.2.6 on iPhone X. After upgrading to iOS 11.3 I can connect to StrongSwan again without having touched any configuration.
Although it could be that the OS was somehow stuck and the hard restart after update "cleared" it up. I should have restarted before the upgrade for a better test. On 31 March 2018 at 16:08, Harald Dunkel <ha...@afaics.de> wrote: > On 03/29/18 18:23, Harald Dunkel wrote: > > Hi folks, > > > > is it just me, or is IPsec broken for ios 11 (iphone)? I can establish > > an IPsec connection once, but if I reconnect then the routing appears > > to be broken. I cannot ping the DNServer on the remote net. > > > > My ipad (ios 10) with a similar profile has no such problem. > > > > Can anybody reproduce this? > > > > Using the new ios 11.3 or macos 10.13.4 the problem vanished. > > > Regards > Harri >