Fritz!Box FRITZ!Box 3272: MAC Filtering

THIS FIXED THE PROBLEM ON MY ROUTER

Disabling the Teredo filter in the FRITZ!Box

1. Click "Internet" in the FRITZ!Box user interface.
2. Click "Filters" in the "Internet" menu.
3. Click on the "Lists" tab.
4. Disable the option "Teredo filter enabled".
5. Click "Apply" to save the settings.

A Teredo server is listening on network port 3544 (UDP) and the FRITZ!Box is, by default, configured to block port 3544 for security reasons.

So with this in mind you would have to login to your FRITZ!Box web utility interface and disable the option: "Teredo filter enabled".

For this to work, you will have to take more sure "Advanced View" is enabled on the user interface of your FRITZ!Box.

- Click "Filters" in the "Internet" menu.

- Click on the "Lists" tab.

- Disable the option "Teredo filter enabled".

- Click "Apply" to save your settings.

I would also make sure IPv6 is completely disabled for all interfaces on your FRITZ!Box.

At this point, make sure only UPnP (Universal Plug and Play) is enabled, as the feature to forwarding (automatically) network ports used by Xbox Live.

Don't forget to "Apply" your configuration and reboot your gateway afterwards.

Post back and let us know how that goes.

After a huge muck round with my nat type, I finally fixed it...

1 Disabling Teredo filter in the FRITZ!Box

Click "Internet" in the FRITZ!Box user interface.

Click "Filters" in the "Internet" menu.

Click the "Lists" tab.

Disable the option "Teredo-Filter aktiv".

Click "Apply" to save your settings.

Stupidly easy, but hey going from strict to open is all good

opened the ports like normal too

Rather than individually forwarding all of those ports, I would recommend configuring your FRITZ!Box to enable UPnP for your PC. This will allow Windows 10 to automatically tell the FRITZ!Box exactly which ports it needs to have open, when it needs them,
and then to close the ports back down again when they're not needed any more.

In your FRITZ!Box go to: Home Network > Network, find your PC on the list and click its "Edit" icon, then enable the "Permit independent port sharing for this device" setting.

Hopefully this will improve things for you. I can confirm that on my own network with this setting enabled (and the Teredo filter enabled, the FRITZ!Box default), my Xbox reliably shows NAT as "Open" so it should do the trick for Windows as well.

I have noticed there is a newer Firmware for the 7390 listed, but it is German ... would this be ok for an Australian Fritz?

FRITZ.Box_Fon_WLAN_7390.AnnexB.84.06.00.image 24-Oct-2013 10:15 15M

". FRITZ.Box_Fon_WLAN_7390 image *" containing the update file in this directory

the current firmware (system software) for Box Fon WLAN 7390th

Caution: This firmware is only for FRITZ Box Fon WLAN 7390 suitable!

Product: FRITZ Box Fon WLAN 7390!

Version: FRITZ OS 6.00 (84.06.00)

Language: German

Release date: 28/10/2013