I'm trying to configure an IPSec VPN to one company from my home. The company has SANET internet service provider. I was able to create a VPN connection from another company that has the same internet service provider. The problem begins when I'm trying to connect from another ISP like Orange or Telekom. Here is the log from ZyWall:

VPN Client To Site Setup on USG/ZyWall Devices; IPSec VPN Site-To-Site Configuration on USG/ZyWall devices; Weekly Firmware / Support Version / Lab Version; VPN2S - Setting up a VPN Tunnel; SSH access to my USG from outside (WAN) - what to look after? Knowledge Base | Zyxel Basically, the ZyWALL IPsec VPN client builds a VPN tunnel to WAN1. But when WAN1 is down, the customer wants the ZyWALL IPsec VPN client to build VPN tunnel to WAN2 automatically. 3. The customer wants to use the simplest settings on both ZyWALL IPsec VPN client and ZyWALL 35 to achieve this application. The challenge of this application: 1. IPSec VPN Client Setup - SmallNetBuilder.com ZyWall/USG IPSec VPN Client Guide 1. In the Zywall/USG, go to Configuration->Quick Setup->VPN Setup Wizard, please use the VPN Settings for Configuration Provisioning. This will create a VPN rule that can be used with the Zywall/USG IpSec VPN client. Click Next. 2. Choose Express to create a VPN rule with the default phase 1 and phase 2 Knowledge Base | Zyxel Set Up the ZyWALL/USG IPSec VPN Tunnel of Corporate Network (HQ) 1. In the ZyWALL/USG, go to CONFIGURATION > Quick Setup > VPN Setup Wizard, use the VPN Settings wizard to create a VPN rule that can be used with the remote ZyWALL/USG. Click Next.

It might sometimes happen, that your ZyWall IPSec VPN Client license is not allowing to be activated anymore. This can happen if you try to reapply the license to a new device without deleting the reference to an older licensed machine e.g. However, if the license is blocked, please contact the support staff and provide the following:

Aug 29, 2015 · When using the Proxicast VPN Client for Windows, a VPN tunnel might fail to open after upgrading to Windows 10. Check if the VPN Client console log shows the following message: 20150806 14:12:55:088 TSocket No socket for IPV4 address 192.168.0.20:500 20150806 14:12:55:088 TSocket message data type IKE (0) could not be sent ZyWall/USG IPSec VPN Client Guide 1. In the Zywall/USG, go to Configuration->Quick Setup->VPN Setup Wizard, please use the VPN Settings for Configuration Provisioning. This will create a VPN rule that can be used with the Zywall/USG IpSec VPN client. Click Next. 2. Choose Express to create a VPN rule with the default phase 1 and phase 2 From IPSec_VPN, to ZyWALL, source any, dest any, service any, allow. I also noticed in the VPN client configuration instructions didn't match what I saw on the screen. I had no Apply button. I was able to save the changes by pulling down the Configuration menu and choosing Save. The final issue I had was with PFS. Test IPsec VPN Client Suite for Windows 10, 8, 7, Android, OS X, Windows Mobile, Mac 30-days free of charge. VPN Client, personal firewall, Internet connector (Dialer) in a single software suite.

The Zyxel IPSec VPN Client is designed an easy 3-step configuration wizard to help remote employees to create VPN connections quicker than ever. The user-friendly interface makes it easy to install, configure and use. With Zyxel IPSec VPN Client, setting up a VPN connection is no longer a daunting task.

ZyWALL VPN SecuExtender IPSec Windows Setup - YouTube