: Open your browser and go to 192.168.100.1 (the default gateway ).
: This is the most reliable and safest method. ISPs use specific firmware versions compatible with their OLT (Optical Line Terminal) and Management Systems. Using the wrong version can cause the device to stop working on your network. hg8245w56t firmware link
: Since ONTs are often customized for specific networks, you should contact your ISP's technical support. They can push the latest verified firmware update directly to your device remotely. : Open your browser and go to 192