Arduino MKR1000 connects to wifi that does not require password

Hi everyone,

I just received my Arduino MKR1000 and this little board is full of fun!

However, when I tried to connect to a public wifi that did not require a password, it failed. I plan to build a smart scale that can sync data via wifi but it will be a pity that it does not work for most wifi. Can anyone tell me whether the mkr1000 is capable for it or not? Thank you very much!