My workplace has a VPN server which requires a Google Auth token to connect. Connecting via console works - I'm asked for the token and the connection goes through smoothly. However connecting via the GUI returns the following error without asking for the token:

CHALLENGE: Enter Google Authenticator Code
Enter Google Authenticator Code
MANAGEMENT: Client disconnected
ERROR: could not read static challenge response from stdin

How do I force OpenVPN to request the token rather than shutting down the connection?

I'm using OpenVPN v2.3 x64 on Windows 10.

  • VPN to connect Google is Block, look a terms official google security. VPN mean proxy.
    – KingRider
    Jun 27, 2016 at 14:06
  • @rany Latest (v10) from openvpn.net Jul 15, 2016 at 10:15
  • @rany are there other GUI clients for OpenVPN? Jul 15, 2016 at 10:20
  • @rany the GUI itself is version 10. The OpenVPN is version 2.3. Jul 15, 2016 at 10:46

1 Answer 1


This is impossible in the current version of OpenVPN GUI. Use the console version to get it working.

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