9 out of 10 problems will be fixed by trying the following 2 steps
1. Find out if you have coverage in your location
2. Reboot your portable wifi
1. Find out if you have coverage in your location
If your device blinks red, you are not in the service area. Please check the coverage areas with the link below :
2. Reboot your portable wifi
Please look at the below picture to reboot your portable wifi.