How do I fix a timeout expired exception.

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C#

WinForms

I am trying to update fields and the code has no errors but when it gets to ExcecuteNonQuery() the program freezes for about 15 seconds then throws an errors saying timeout expired. The update stored procedure works perfectly fine.

Below is the code for the update method.

public void UpdateChurch(Church church)
{
    using (SqlConnection con = new SqlConnection(connectionString))
    {
        dbConn.Open();
        SqlCommand cmd = new SqlCommand("sp_UpdateChurchInfo", con);
        cmd.CommandType = CommandType.StoredProcedure;

        cmd.Parameters.Add(new SqlParameter("@ChurchID", SqlDbType.Int));
        cmd.Parameters["@ChurchID"].Value = church.ChurchID;

        cmd.Parameters.Add(new SqlParameter("@Name", SqlDbType.NVarChar, 50));
        cmd.Parameters["@Name"].Value = church.Name;

        cmd.Parameters.Add(new SqlParameter("@Address", SqlDbType.NVarChar));
        cmd.Parameters["@Address"].Value = church.Address;

        cmd.Parameters.Add(new SqlParameter("@SubCode", SqlDbType.Int));
        cmd.Parameters["@SubCode"].Value = church.SubCode;

        cmd.Parameters.Add(new SqlParameter("@City", SqlDbType.NVarChar, 50));
        cmd.Parameters["@City"].Value = church.City;

        cmd.Parameters.Add(new SqlParameter("@Tell", SqlDbType.NVarChar, 10));
        cmd.Parameters["@Tell"].Value = church.Tell;

        cmd.Parameters.Add(new SqlParameter("@Fax", SqlDbType.NVarChar, 10));
        cmd.Parameters["@Fax"].Value = church.Fax;

        cmd.Parameters.Add(new SqlParameter("@EmailAddress", SqlDbType.NVarChar, 50));
        cmd.Parameters["@EmailAddress"].Value = church.EmailAddress;

        cmd.Parameters.Add(new SqlParameter("@WebAddress", SqlDbType.NVarChar, 50));
        cmd.Parameters["@WebAddress"].Value = church.WebAddress;

        cmd.Parameters.Add(new SqlParameter("@NoOfMembers", SqlDbType.Int));
        cmd.Parameters["@NoOfMembers"].Value = church.NoOfMembers;

        cmd.CommandTimeout = 180;

        try
        {
            cmd.Connection.Open();
            cmd.ExecuteNonQuery();  //here is where the problem occurs.

        }
        catch (Exception ex)
        {
            MessageBox.Show(ex.Message, "Error",
            MessageBoxButtons.OK, MessageBoxIcon.Error);
        }

    }
}