I found a fairly simple way to connect to hidden wifi networks after upgrading to v1.1.1. First, go to the terminal ctrl+T then ctrl+C
In the terminal, run the raspberry pi configure command as follows:
“sudo raspi-config”
From the config tool, choose option 2. Network Options,
Then choose option 2. Wi-Fi
On this page, fill in the SSID and password/phrase. exit out of raspi-config and reboot.
Works great on my system that’s downstairs on the opposite end of the house from the access point.
Here’s a pic of youtube on my 1F on CRG’s page.
Hope this helps,
DizzyG