UPC / Sunrise incoming connections

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1
Has anyone been able to get a UPC / Sunrise connect box to accept incoming connections?

I configured my connect box and added a rule to the windows firewall, tried opening ports for all protocols and for tcp explicitly. but still can't connect from outside the network to a test server I set up.

I'm seeing some old comments on a Sunrise forum saying it's not working with IPV6 and you need to ask to change your connection to IPV4, ring a bell with anyone?

2
yes, it works fine. Not recommended though, better setup a VPN.

3
Windows firewall configured? Do you have the same port open on the Connect box? IPV4 connection is needed only if the box is running in bridge mode.