Q: Why I can't install the 2.0 update to apple watch?

Apple watch update 2.0.1

I have already updated my iphone 6s to the latest update?

Apple watch is connected to charger.

IPhone is in range and connected to my wi-fi network.

The update is downloaded and when is verifying the update it says that I'm not connected and unaible to verify.

I Start the process again with same results.

What else can I do?