1, broadband is overdue or expired, and it needs to be paid or renewed in time.

2. The network cable is loose, so both ends of the network cable should be plugged tightly.

3. If the equipment is used for a long time, you can turn off the internet devices such as optical cats, routers and computers for a few seconds, and then turn on the power to restart.

4. If the above methods cannot be restored, it is recommended to contact the local customer service hotline staff.