How to fix a problem when I cannot establish a connection
Users behind a proxy server may not be able to establish a VPN connection. It depends on the policy of the network you access from, which is deployed on the proxy server. Except for such a case, there are two failure patterns in establishing a VPN connection, which you could fix by following the links below.
- Unable to connect because of an incorrect certificate settings » What is wrong when I cannot establish a VPN connection? (Username and Password Requested)
- Unable to connect because the communication between the server (vpn.riken.jp) and the client (user PC) is suspended halfway. » What is wrong when I cannot establish a VPN connection? (The screen goes white)