Troubleshoot VPN Gateway

VPN Gateway connections can fail for a variety of reasons. This article contains links to get you started with troubleshooting. For a full list, see the articles contained in the table of contents under Troubleshoot, to the left of this page.

Troubleshooting scenarios and solutions

• Validate VPN throughput to a VNet
  A VPN gateway connection enables you to establish secure, cross-premises connectivity between your Virtual Network within Azure and your on-premises IT infrastructure. This article shows how to validate network throughput from the on-premises resources to an Azure virtual machine (VM). It also provides troubleshooting guidance.

• VPN and Firewall device settings
  This article provides several suggested solutions for third-party VPN or firewall devices that are used with VPN Gateway. Technical support for third-party VPN or firewall devices is provided by the device vendor.

• Point-to-Site connections
  This article lists common point-to-site connection problems that you might experience. It also discusses possible causes and solutions for these problems.

• Site-to-Site connections
  After you configure a site-to-site VPN connection between an on-premises network and an Azure virtual network, the VPN connection suddenly stops working and cannot be reconnected. This article provides troubleshooting steps to help you resolve this problem.

• Troubleshoot Azure VPN Gateway using diagnostic logs
  Using diagnostic logs, you can troubleshoot multiple VPN gateway related events including configuration activity, VPN Tunnel connectivity, IPsec logging, BGP route exchanges, Point to Site advanced logging.

Next steps

You can also use these steps to Validate VNet and VPN connections.