Since the update on iOS 9.3.5 of the Cisco Anyconnect app 4.0.05052, i had to change a setting in the profile iOS received. The error message was in french:
La connexion RPV a été déconnecté en raison d'une interruption du système. La fonctionnalité de reconnexion est désactivée. Une nouvelle connexion doit être établie, ce qui nécessite une nouvelle authentification.
The translation may look like this: The VPN connection has been disconnected because of a disruption. Reconnection feature is disabled . A new connection must be established , which requires re-authentication
i use ASDM 7.6(1) on a old ASA 5510 9.1(7)
where to change the setting?:
Network (Client) Access
Anyconnect Client Profile
Edit the profile
Preferences (Part 1)
Auto Reconnect Behavior, change Auto Reconnect Behavior from DisconnectOnSuspend to ReconnectAfterResume, APPLY and SAVE
On the iPhone, disconnect the VPN and reconnect it. They will received the new profile.
Now iPhone work better, no more error message when they turn the screen on after being black for more than 15 secondes. If a iPhone is put in Sleep (screen off), after 15 secondes, the VPN in the iPhone goes in Suspend (maybe not the good word, sleep, deep sleep???). When the screen turn On, the VPN resume and work.
hope this will help someone
https://bst.cloudapps.cisco.com/bugsearch/bug/CSCva56275/?referring_site=bugquickviewredir
