Can I control my devices without internet?

Hi,

I just bought a NSPanel Pro and I have problem. My internet doesn’t work currently because my ISP is doing some kind of maintenance work. I’m using the NSPanel Pro to control the heater using an SNZB-02P and a ZBMINI-L2 through the Zigbee hub connected to the NSPanel Pro. I can’t turn on and off the heater without the internet access. The LAN mode is turned on. What can I do?