Method 4: Remove the Cache on your mobile phone

If there is a pent-up cache or no storage space, then there may be the possibility that some applications on your phone may stop working. So, nighthawk-app.com does not detect WiFi routers due to the no storage space in the mobile device. To resolve the issue, you are required to clear the cache and make some space in your mobile device to run the Nighthawk application again.