Step 1: Click Start button and type Regedit
Step 2: Browse to HKEY_CURRENT_USER -> Software -> Microsoft -> Windows -> CurrentVersion -> Internet Settings
Step 3: Create a new DWord with the name MaxConnectionsPerServer (To create a new DWord, right click on the empty space found on the right side box -> Click New -> Click ‘DWORD 32 Bit Value‘)
Step 4: Create another new DWord with the name MaxConnectionsPer1_0Server
Step 5: Double click these new DWords you have created and set the decimal value higher than 2 and lesser than 10 (This number represents the maximum simultaneous download allowed)