very slow web service on live server

Dear all,
I developed web services on vs 2013 c#  , It works fine on my development environment , but when I deploy it live server it begin very very slow ...
And after 3 or 4 times of calling web services I got this message:
System.InvalidOperationException: Timeout expired.  The timeout period elapsed prior to obtaining a connection from the pool.  This may have occurred because all pooled connections were in use and max pool size was reached.
   at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection)
   at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory)
   at System.Data.SqlClient.SqlConnection.Open()
   at WebServiceArabDictionary.Repository.GetWordList(String SearchWord, String UserDeviceKey, String UserDeviceKeyEncrypted, Int32 iFrom, Int32 iTo) in w:\xxxxxxxxxxxxxxx\Repository.asmx.cs:line 181

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ethar1Asked:
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Melih SARICAOwnerCommented:
Its the sql servet that fires the exception
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Jacques Bourgeois (James Burger)PresidentCommented:
You possibly have a ConnectionString in your application that is not valid on the server.

You might have use a local or test database during development, so the ConnectionString must be changed for the server.

If you use the same database for development and production, then the credentials might need to be set in a different way, or the security adjusted so that the web service can log into the database.
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ethar1Author Commented:
It works for a few times ( 10 or 15 )  then it stop.
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Melih SARICAOwnerCommented:
increase the  maxpoolsize property of the connection
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