Detailed Xbox App NAT problem

Hello, Thank you for your respond Am gonna show you my problem with this NAT, well here is that problem detailed :

firstly i ve tried everything what you sent me on email before like chcecked internet connection , trying to fix my nat due windows settings, configuring Teredo manually , Checking Asus services (i dont have Asus pc but for sureness ) , I checked the IP Helper
in services , set teredo name to default and in Device manager and there are no TAP-Windows adapters.

When i check services there are only xbox accessory management service and xbox game monitoring service and i cant install the other services like : Live auth manager or live gamesave

Next i checked my windows firewall settings everything is set

Then the Port forwarding takes the part so :

I have 2 routers set to this schema : Internet > Router Huawei HG8240 > Router Tplink Archer C60 > PC

Huawei HG8240 internal IP : [Mod Removed - Personal Information]

Tplink Archer C60 external IP : [Mod Removed - Personal Information] internal IP:
[Mod Removed - Personal Information]

PC IP : [Mod Removed - Personal Information]

here are photos of how i made it :

[Mod Removed - Personal Information]

If there is something bad configured or you need more informations let me know Then i tried to Enable Upnp and DMZ for both routers nothing really helped :/

I checked with Portforward app if the port is enabled but no it is closed .. then i opened Windows firewall and Inbouned the rules for all of these ports.. Still nothing happened I even checked the canyouseeme.org there is still an error and the port is not
reachable.

Then i set my Ip to static and set the internet connection type for IPV6 to Pass-Through (bridge). There was such a hope when the nat was enabled I was feeling that I finally repaired it but no i still couldnt reach the servers. And after quite time or restarting
PC in the Win settings teredo was unable to qualify and after repair and next check the nat was strict

Of course I ser Teredo client port to 60209 and opened port for it still nothing.

:)