: When this light flashes red, the fiber connection has dropped. This issue is typically caused by a bent fiber line, dirty optical connectors, or a network outage on the ISP's side.
If you encounter issues, refer to the following common problems and solutions: Potential Cause Broken fiber or no signal. Check fiber connection, restart ONT, call ISP. No Internet Access Incorrect WAN/PPPoE settings. Log in and re-configure WAN settings. Forgot Password Password changed. Press the reset button on the back for 10 seconds. Slow Speed LAN cable issue/interference. Check cable, optimize Wi-Fi channel. 5. Frequently Asked Questions How do I factory reset the HG865? huawei echolife hg865 manual hit