Increase Internet Explorer's Simultaneous Connections Limit

Published Tue, Jun 8 2004 19:30 | coad

Internet Explorer limits the number of simultaneous downloads to two downloads, plus one queued download. This is an out of the box browser setting.

To increase the number of simultaneous connections that are allowed, follow these steps:

  1. Start the Registry Editor (regedit.exe)
  2. Go to HKEY_CURRENT_USER \ Software \ Microsoft \ Windows \ CurrentVersion \ Internet Settings
  3. Select "New" > "DWORD Value" from the "Edit" menu
  4. Name the new value "MaxConnectionsPer1_0Server"
  5. Right-click the "MaxConnectionsPer1_0Server" value and choose "Modify"
  6. Under "Base", click the radio button next to "Decimal"
  7. In the "Value Data" box enter the number of simultaneous connections you want to set (for example 10 is a good value), and click "OK"
  8. Repeat steps 3 - 7 using the new value "MaxConnectionsPerServer"
  9. Exit the registry editor
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Comments

# coad said on June 24, 2004 9:25 AM:

I tried this for an application that has 5 (slow loading) frames. It appears that the frames are still serviced serially and not in parallel.

Does anyone know if anything needs to be changed in IE preferences to ensure that it will pick up the new connection limit?

Thanking you for any help,

Gavin

# coad said on December 12, 2004 4:16 AM:

it works!
been wanting this for years
thanks

# coad said on January 22, 2005 3:33 PM:

I noticed on another web site (http://www.winguides.com/registry/display.php/733/) that they were adding a max connection setting at the following registry key:

[HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\VxD\MSTCP]

How is this different from the settings you have suggested. What would happen if I added both?

# coad said on January 24, 2005 9:04 PM:

Good question! I don't know. But if you tried one method, then the other, then both, and reported your findings, it would be appreciated! :)

# coad said on September 15, 2005 8:02 AM:

[HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\VxD\MSTCP]

That key is for Windows 9x/ME. I use XP and that key doesn't exist for me.

# TrackBack said on September 27, 2005 8:03 AM: