I´ve configured the additional settings in the network policy. In the Sophos logs I can see, that the AP is trying to connect, but the VPN tunnel can not be established. I can see the following line:
Pluto does not support HybridInitRSA authentication
In the AP log I find these lines:
ERROR: phase1 negotiation failed due to time up
ERROR: Peer not responding, phase 1 packet retransmit more than 5 times
Is there anybody who has already successfully commissioned this installation?
