Guest network does not work on Keenetic Omni ll

Hello! In my Keenetic Omni 2 I can't configure guest network. I follow "Segments"->"GuestWiFi" and tune (screen in attach)

Next, in WiFi -> Guest network, I will enable checkbox "Enable guest access". 

Then I see on my device network "Office", but when I connect to it, I got warning "Connected, but not with the Internet".

I tried various combinations, but have no sucsess. 

Main access point (Home) work correctly.

Help me please!

#Others_Nov_2019