Phase 1 connection 412 error

[Stevan44]

RA VPN Phase 1error using ASA5550 and Cisco VPN Client 5.7.440

I can't seem to get past the error 412 “The remote peer is no longer responding”. This message is from the Cisco VPN client log. I can see the VPN ACL on the outside hit count increase so I know that the client is reaching the ASA. But it not talking back. The ASA is in the Single, Router mode to support VPN. I believe that the config is correct at least to my knowledge. I would be most appreciative, if someone would be kind as to find the issue that escape me.

I've added the config . but removed the cert information and most Network objects for the purpose of brevity.

Thanks

Steve

[Sheraz.Salim]

you configuration look to be fine. here is the link the same error is been discussed and proposed a solution too. have a look at it.

https://community.cisco.com/t5/vpn/vpn-client-reason-412-the-remote-peer-is-no-longer-responding/td-p/917461

[Stevan44 · Accepted solution]

The issue was missing a NAT (outside,outside) DMZ and Transform-set issue (debugging revealed error All SA proposals found unacceptable and Warning: Ignoring IKE SA (src) without VM bit set). I hope that this will help someone.

Thanks Sheraz for your suggestion, please mark this as solved.