Hi @xiayanwei,
Welcome to the Community!
We're not seeing any widely reported issues in the area at the moment, but we can certainly take a closer look at what's occurring with your connection and resolve any problems that you're experiencing.
I've located your account using your Community details and has conducted remote test on the line.
Currently, the results does not show a physical fault on the line and can see that your modem is connected to our server.
Can you please confirm if your devices are connected via Wireless?
If yes, you may check this great article for Wi-Fi troubleshooting steps - No Internet/Connection.
Let us know should you need further assistance.
Regards,
