Mango v2 gl UI - can't connect to password less wifi

As mentioned, I tried to connect to a passwordless wifi, but the gui insist me to put in a password

Hi, which version of the firmware do you use?

3.025 from auto update

other question:

If I choose ‘other’

I can pre-save a password less wifi, but why do i need to specify the channel number ? Shouldnt it be auto ?

It may be a multi-SSID network. Can you take a look with a WiFi analyzer APP?