The most common issue we have seen this happen is if your computer uses WiFi, and the WiFi network is on different subnet of your Linortek device connected to. Make sure the Linortek unit is on the same subnet as your computer.
The other possible issues might be the firewall on your network or your computer blocking the communication, talk to your IT department and make sure UDP port 30303 is allowed. If you use Windows computer, you can try to open Command Prompt and type there: “ping server”. If you get “Reply from” please open a browser and type this IP address to the URL line.
If you still have problems, you can connect the unit directly to your ethernet port on your computer, the factory default is 169.254.1.1. Type the IP address into a chrome or Firefox and it should bring you to the Login web page.