1.Run Registry Editor (regedit). 

2.Navigate to the following registry key: 

  

  HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings

3.Create the following two new DWORD (32-bit) Value and named them accordingly: 

  MaxConnectionsPerServer

  

  MaxConnectionsPer1_0Server

4.Set the value data for the registry entries created to an integer that equal to the number of simultaneous  connection requests to a single HTTP server allowed. For example, if you want the maximum number of concurrent downloads or web page loading to a single server is 8, just enter the value as 8 (Decimal or Hexadecimal). For 10 connections, enter 10 as Decimal or 000000a as Hexadecimal. By default the values are 2 and 4 respectively. 

5.Reboot system or log off and login again for the change to take effect.