I'm trying to coneect a 535G to a UC540 via ssl vpn. I used the CCA 2.2.1 wizard to configure the phone and it claimed to be successful, setting the user name and password into the ssl vpn. However, when I connect the phone to an exernal network, it does not appear to try to connect to the UC540 to establish the VPN. I noticed that the wizard said that the phone should restart after the config, but it did not. What could be the problem? I can succesfully connect using https from a browser on a computer connected to the same external network as the phone. Is there a minimum software version for this to work? The phone is at 7.1.9..