Hi Joseph,

"Received non-routine Notify message: No proposal chosen (14)"

[IKEv1 DEBUG]: Group = X.X.X.66, IP = X.X.X.66, processing hash payload

[IKEv1 DEBUG]: Group = X.X.X.66, IP = X.X.X.66, processing delete

[IKEv1]: Group = X.X.X.66, IP = X.X.X.66, Connection terminated for peer X.X.X.66. Reason: Peer Terminate Remote Proxy

I looked at your crypto isakmp output and it seems to me the problem may reside in IKE policy so phase-1 complets but re-stars again in a second atempt which fails , I suggest both ends do check within the IKE policies encryption algorythm settings e.i hash, aes-256, dh group types , in other words anything to do with IKE policy do match at each end. Can you confirm the other end do agree with your IKE settings?

Rgds

Jorge