Problem with downloading offline map

[subaboxer]

Suunto Race – map download issue
I’m trying to download maps on my Suunto Race. The download starts, the watch is connected to the charger and Wi-Fi hotspot, but the connection drops after a short time.
The watch stays on the charger, and the internet is working fine.
What could be the problem?
When the watch reconnects, does the download resume or start from the beginning?