@CarlosGeadas Hi Really it's totally crazy this issue. In my case I have some static IP on NAS &3d printer via octoprint and in this situation I don't know how to access them from outside via a ddns...

Too many thanks. In fact, now i'm sure that C7 v5.0 is not usefull for me... And more whe i have actually an C7 V2.0 and an archer C5. Regards

Hi I have just installed this C7 router via Tether mobile app version 3.3.25 connecting directly to provider router with dynamic IP to it and creating an wifi network in archer c7. No problem at all....