Hi @brucehui ,
For customers experiencing any issues with their service, we recommend the best thing to do first is check if there's an outage.
If there are no known outages in your area, you can proceed with the troubleshooting steps indicated on this link: Troubleshooting No Internet Connection
We had a look at your account and it appears that the issue has been resolved. If you need further assistance, feel free to message us. Cheers!