ZTE does not ship all MF79U modems with the same Wi-Fi password. Instead, each unit receives a random, device-specific password at the factory. You can find it in three places:
Struggling to connect to your ZTE MF79U 4G USB modem? Discover the factory-default Wi-Fi password, how to find your unique sticker, step-by-step admin login instructions, and critical security tips to protect your network. ZTE MF79U Default Wi-Fi Password
Ensure your computer or phone is connected to the ZTE MF79U Wi-Fi network. IP Address: Open a web browser and enter ZTE does not ship all MF79U modems with
While the Wi-Fi password is unique, the web admin interface (192.168.0.1) often retains a universal default like admin / admin or admin / (last 4 digits of IMEI). This is a separate, notable weakness. Discover the factory-default Wi-Fi password, how to find
The default network name (SSID) will also be printed on this same sticker, usually appearing as something like ZTE_XXXXXX FCC Report Accessing the Admin Panel (Web Interface)