How to solve the VS installed machine cannot run performance testing by .testsettings file, which will distribute the tests running on multiple test agents by test conroller?

Firstly need get confirmed that:
1. Can ping successfully from VS machine to Test Controller

2. Test connection successfully as below picture shows:

If the connection testing failed, please check below settings:

1). Firewall public inbound connection -> Allow  // We can do more accurate configuration by firewall rules

2). SQL Server Serice: SQL Server Browser->Enable

3). SQL Server Network Configuration: SQLEXPRESS protocal->TCP/IP->Enable