Ionic run android --device gradle download

Hi everyone, as the title say… im trying to test my app in my android phone connected via USB to my laptop. this is what i have try:
1 - ionic platform add android
2 - ionic run android --device
then after a while i see:
Downloading http://services.gradle.org/distributions/gradle-2.14.1-all.zip
.
.
.
.
At first i saw more and more " . " coming out, but then nothing else happend and its been like 2 hours already.
What i do wrong ?