Problem connecting to Azure P2S VPN (Error 720)

Problem

When setting up a P2S connection to Azure using the Windows VPN client you receive Error 720: A connection to the remote computer could not be established.  You might need to change the network settings for this connection.

Resolution

On your workstation:

  • Open Device Manager
  • Go to Network adapters
  • Right-click the WAN Miniport [protocol] and select Properties
  • Select Uninstall device

  • Repeat the above for each WAN Miniport driver installed
  • Reboot your PC
  • Re-open Device Manager
  • Right-click Network adapters and select Scan for hardware changes

Retry your Azure VPN connection. This time is should connect successfully.

For more information, see Connect to a VNet using P2S VPN & certificate authentication: portal – Azure VPN Gateway | Microsoft Docs

About John Duckmanton 15 Articles
At work, I am a Cloud Solution Architect in the UK. AT home I am a self-certified code geek, gather, biker, and avid Sheffield Steelers Ice Hockey Fan.

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