Sloved! My router Power line connected, but "SYS" or "PWR" or "Power" LED is off.

Issue: Power line connected, but "SYS" or "PWR" or "Power" LED is off. Main Cause and Solution: Item Cause Solution 1 Power plug not well Check adapter plug, DC plug. If you have more than one product, try to exchange adapter and product 2 Power adapter is broken Change new power adapter 3 Router power problem Change new router