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VPN Error 800: Unable to establish the VPN connection The VPN server may be unreachable, or security parameters may not be configured properly. I am using Win2003 and a Linksys router BEFSX41 router. I am forwarding the following ports: HTTP port 80 FTP port 21 Telnet port 23 VPN port 1723 I am able to access the server using FTP, Telnet, and HTTP, but not VPN. The local network gateway is 192.168.3.1 สอบถามครับ VPN ไม่ได้ - Fortigate - Fortinetthai.com The vpn server may be unreachable (-5)" แนะนำทีครับ ไม่ทราบว่าการตั้งค่า ที่ตัว forticlient ถูกต้องหรือไม่ครับ และขอสอบถามว่าปัญหานี้เพิ่งเป็นหรือเปล่า Unable to establish the VPN connection. (Error 800) in SBS

The VPN server may be unreachable. (-5)" is obtained in FortiClient trying to connect to the SSL VPN and it is stuck at 40% after upgrading to 5.4.x from 5.2. or earlier.

Jan 24, 2020 Unable to establish the vpn connection. The vpn server may Mar 29, 2020

Dec 18, 2015

Dec 13, 2018 · The VPN server may be unreachable. (-5)" is obtained in FortiClient trying to connect to the SSL VPN and it is stuck at 40% after upgrading to 5.4.x from 5.2. or earlier. Fig : 21 Jan 13, 2012 · The VPN server may be unreachable -5 Posted on January 13, 2012 by Rambling SysAdmin Today I got a phone call from a client who wasn’t able to connect to his VPN, he was constantly getting Unable to establish the VPN connection. The VPN server might be unreachable. If this connection is attempting to use an L2TP/IPsec tunnel, the security parameters required for IPsec negotiation might not be The VPN server may be unreachable. (-5)" is obtained in FortiClient trying to connect to the SSL VPN and it is stuck at 40% after upgrading to 5.4.x from 5.2. or earlier.