Activating Gateway

A gateway that works nice until now during some years, into V2 platform, I factory reset by pressing for long at power up time. After that, I renamed the gateway and assign a new Account Server as: https://eu1.cloud.thethings.network.

This is the URL apperare when I added a new gateWay into V3 platform.

When I save the new configuration appear “Please wait while your gateway communicates with the Things Network backend.” and do nothings else.

I try to activate via: https://ttn.fyi/activate, it redirect to :The Things Kickstarter Gateway | The Things Stack for LoRaWAN

I’ve benn reading several post related to my problem and I’m unable to see what coudl happen.

I think it is not a PORT matter becase previous at factory reset, it has been working for long

Thanks