Hi Zhuoqiong Mo •,
Welcome to Microsoft Q&A forum.
As I understand, you could not connect to Azure SQL Server via Azure Data Studio, and it was working fine earlier.
Please check below points:
- Check if the password has been reset for the server?
- Ensure that you are using the correct server name. It should be in the format:
your_server_name.database.windows.net
- If your Azure SQL Server is configured to allow remote connections.
- Check Firewall rules and network connectivity working fine.
- Check if the same is accessible via Query Editor in Azure Portal so that we can understand if the issue exists between server and ADS.
- Try using SSMS if the same server is logged in from there and issue exists across all tools or only SSMS.
- Try updating ADS to the latest version and retry.
Let us know if above helped. If not, please share configuration details of your server so that we can replicate the same and try at our end.
Thanks.