Ensure your router and computer are connected to a reliable power source. If your area is prone to blackouts, use an Uninterruptible Power Supply (UPS).
: The default login is typically Username : admin / Password : admin . How to Check for Updates If you are looking to update your current firmware: zte zxhn h108n v2.5 firmware original
Log into your current router dashboard, navigate to the management settings, and download your current configuration file. This allows you to quickly restore your PPPoE credentials later. Ensure your router and computer are connected to
Place the file inside the directory of your TFTP server application. navigate to the management settings
Check the DSL statistics: SNR margin should be >6 dB, attenuation <50 dB. If the original firmware was ISP-customized, your Internet should auto-connect via TR-069.