OpenConnectionForKey with Active Directory administrator not working

Hi guys,

I am trying to edit my application in order to use the Active Directory administrator from Azure SQL Server.
With a simple db connection it all works fine, but when I'm trying to get the connection for a single shard with OpenConnectionForKey (in order to get the connection for a DbContext), the login is not working and i receive this message: "Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON".
I'm using 1.3.3 version of library with project targeting to 4.6.2
Here it is the code example:
`private static DbConnection CreateShardConnection(ShardMap shardMap, int shardingKey, string connectionStr, bool enlistPool)
{
// No initialization
System.Data.Entity.Database.SetInitializer(null);
var cStr = new SqlConnectionStringBuilder(connectionStr);
cStr.MultipleActiveResultSets = true;
cStr.Enlist = enlistPool;
// Ask shard map to broker a validated connection for the given key
return shardMap.OpenConnectionForKey(shardingKey, cStr.ConnectionString, ConnectionOptions.Validate);
// No initialization
System.Data.Entity.Database.SetInitializer(null);
var cStr = new SqlConnectionStringBuilder(connectionStr);
cStr.MultipleActiveResultSets = true;
cStr.Enlist = enlistPool;
// Ask shard map to broker a validated connection for the given key
return shardMap.OpenConnectionForKey(shardingKey, cStr.ConnectionString, ConnectionOptions.Validate);
}`

An example of the connection string that I am trying to inject is:

`Persist Security Info=True;User ID=dbadmin@domain.com;Password=strongpassword;Enlist=True;Max Pool Size=6000;MultipleActiveResultSets=True;Connect Timeout=30;Encrypt=True;Authentication="Active Directory Password";Application Name=elasticdbapplication`

Previously I had 1.3.0 version library and I've read from this issue (https://github.com/Azure/elastic-db-tools/issues/123) that the target version for Active Directory Authentication is 1.3.2, but with no result as you can see.

Any help is really appreciated