Support by service : Frequently Asked Questions about Arcstar Universal One Virtual

Questions

The Option lamp of vAdapter lights in red and VPN connection is unavailable.

Answer

(If your vAdapter has previously connected)
vAdapter may have failed to connect to vCore due to temporary congestion of Internet environment. Remove the vAdapter and try again after a few minutes.
If the problem persists, please contact us via the Business Portal.

(If the lamp lights in red at the time of initial connection to vAdapter)
Follow the steps on the page below, and check the way of connecting from vAdapter, the settings of the Business Portal (for Virtual), and so on.
 [FAQ]
  *I can’t connect to the Virtual Network via vAdapter.
http://support.ntt.com/en/vpn-virtual/faq/detail/pide230000007w