Direct Access client connectivity

Hello
  We have set up direct access for our client to test but we are stuck with the following issue:

While the client connects through direct access ip-https (disabled 6to4 and teredo and checked httpsinterface with netsh) and can access internal resources the remote client status console shows no connections.

Have checked the Iphlpsvc log and get this:

IP-HTTPS client Unknown (x.y.z.28) is associated with IP address (ipv6 address)

The base filtering engine flow and connection logs are empty.

Any Ideas????

Thank you,