A relevant IP address is essential for having HSNM reachable by the hotspot gateway or controller. 
To set an IP address to HSNM, first of all, log in through a web browser to default IP http://192.168.0250 or 192.168.10.10, then follow these steps: 

Procedure

1. Select the Admin tab
2. Click System Settings > Network  
3. Complete the IP Address, Subnet Mask, Gateway, and DNS…
4. Click Save in the top-right corner of the page. Your selected entries are saved, and services restarted.  

Now you will be able to log in again using the new IP address you have set.