You are looking at the event log of the initiating device and it says Received notify message for DoI <1> <14> <NO_PROPOSAL_CHOSEN>.
What is likely to be the problem?

A.
Phase 2 PFS failure

B.
Phase 1 unrecognized peer

C.
Phase 1 key exchange failure

D.
Phase 2 proposal mismatch

Explanation:
If phase 2 negotiation has been initiated, and you get the <NO_PROPOSAL_CHOSEN> message, this indicates a mismatch in proposals between the two peers. Chances are, one side has nopfs, while the other side has perfect forward secrecy enabled. http://ns5gt-support.netscreen.com/knowbase/root/public/nskb3660.htm