PlayRenfe is the free WiFi service that lets you enjoy onboard connectivity on our trains—even at speeds over 300 km/h.
Connect to the internet with your devices and make the most of your time however you like. Reply to emails check your social media chat or enjoy your favorite streaming platforms.
PlayRenfe is available on all AVE services AVE trains between Spain and France Avlo and most Larga Distancia (long distance high-speed) trains.

https://www.renfe.com/es/es/viajar/el-viaje/a-bordo/wifi-playrenfe