DNS error with multiplayer Solved! (all teredo/NAT issues). Instruction.

Troubleshooting Hub Legacy Troubleshooting FH4 Troubleshooting
1

So
After all this things Xbox Support

You should do next things:

Open your router preferences - just open 192.168.1.1 (may be another for your router. check out website of your supplier)
Most often login will be “Admin” and password will be “password”
And again - check your router’s supplier website or documentation.

In “Port Preferences” (or WAN Setup, or similar) section

  1. SIP ALG Disabled. You can also try to enable it.
  2. IPv6 Pass-though DISABLED!
  3. Nat Filtering - OPEN! - you can find out other options that can block NAT, share your variants in topic please for other people.

If still not works, try this:

This item completely solved the problem for me.

  1. Flag DEFAULT DNZ-SERVER 192.168.blablabla (your PC IP adress) or do another manipulation with DNZ-Server wich can be different on your router.

Guys.
Mostly it is your router issue.
Try to connect your wire(cabel) directly in PC)

Let me know if it helps or i can try to help you find out how to solve this.

P.S.
Sorry for my English
If you are a native speaker, you can help and correct errors in my message, thanks.

2

I have been studying forums, different sites for a long time and this is what I found out.

The following problems may be the cause:

  1. All these settings about teredo and services.msi are provided by microsoft
  2. Your router can block NAT
  3. Your ISP can block ipv6 and all that. Technology nat is created to solve this! Check your router. Try to do the things that are described in the first post.

If still nothing helps - your only way is a VPN :C

3

Stupid thread title. Problem is not solved.

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4

This guy also offer to open ports and do other things. Check out: https://forums.forza.net/turn10_postst134890_-Solution--Endless-connection-to-the-Horizon-Life-network.aspx

5

What fixed my Teredo issues for me was disabling the “Teredo-Filter” (which is enabled by default) in my Fritz Box router. Here’s my Teredo settings in cmd: