Cannot connect to a hidden SSID Octopi

Hello everyone,

What is the problem?
The Octopi (2018-04-18-octopi-stretch-lite-0.15.1) is connected to my wifi (Hidden SSID) as shown,

however, either my mac and phone( Android) cannot connect via IP address/ octopi.local.

What did you already try to solve it?
I've tried to connect my Octopi to another network which doesn't have hidden ssid but the same router but work fine.

I've searched through some site but seems no one having this problem.
Thank you for your help!!

They should be able to connect, especially via IP.

There's no difference between a 'hidden ssid' and a 'published ssid' from a IP routing perspective.