To IPv6 or not to IPv6?

In the wake of the IPv6 day I dumped my old Draytek 2820 router. While I loved the GUI and the simplicity of the DUAL-WAN load balancing it simply lacked my requirements. And those are: IPv6
(No, I don't want to tunnel through my Draytek to my IPv6 Fritz!Box which itself tunnels through the Telekom IPv4 towards the website.)

On the IPv6 day I therefore moved my Fritz!Box 7390 (which was connected to one of the load balanced ports of the Draytek) to be the main router of my network. The Fritz!Box is a DSL consumer device but supports native and 6to4 IPv6.

Old setup:











New setup:









Problems:
While I had no problems with my Linux-based computers or my Fritz!box 7390, one of my Windows 7 computers refused to get an IPv6 address. I have done a number of things to find a workaround but failed until I tried this very rude trick on the Windows command line:

netsh int ip reset C:\netsh.log.txt
netsh winsock reset

This eventually reset the entire TCP/IP stack of Windows 7 and gave me a fresh and shiny IPv6 address.

Future:
In the future I will use a DUAL-WAN or even MULTI-WAN router again. I will buy an ALIX-based router or maybe use one of my existing MikroTik 750G.