i have a problem with my connection string... i want to connect to 172.16.0.253,8887 but i cannot access it in ASP.NET but I can access it in SQL SERVER... what seems to be the problem with my script

code:

```
<connectionStrings>
<add name="DBCS"
     connectionString="Data Source=172.16.0.253,8887; database = webloan; User ID=sa;         Password=12345; integrated security = SSPI"
     providerName="System.Data.SqlClient" />
</connectionStrings>

```