Cannot connect to CISCO VPN from Virtual PC | Vista Forums

Jul 10, 2017 Trouble Connecting with Cisco VPN client reason 412 TCP SYN-ACK received, src port 10000. TCP connection established on port 10000 with server). The IT department should look at their side to see why their side is not responding to IPSEC phase 1 requests. (Unable to establish Phase 1 SA with server because of "DEL_REASON_PEER_NOT_RESPONDING"). – TessellatingHeckler May 28 '15 at 20:23 Unable to connect to Cisco VPN. Error: Connection Dec 12, 2013 VPN Connection Problem (Cisco 412 Error) Solutions By using SPI (Stateful Packet Inspection,) your router watches what connections come from what nodes on your network, so that when a reply comes in, it knows where to route it to. Look at the properties for your VPN connection, and make a note of the host name or IP address. If it's a host name, ping the name so you can resolve the IP address.

Nov 17, 2009

AnyConnect VPN Client Troubleshooting Guide - Common Aug 30, 2018

Apr 04, 2010

VPN connections with the Dell Wireless 2350 Broadband Reason 414: Failed to establish a TCP connection.” In the Dell Wireless 2350 Broadband Router FAQ/Supported Features you can read: - Does the Dell Wireless 2350 Broadband Router support Virtual Private Networking (VPN)? - Yes, the Dell Wireless 2350 Broadband Router supports PPTP, IPSec, and L2TP VPN pass-through. Emule And Vpn - Official eMule-Board