Fixed: How To Fix The Maximum Number Of Regedit Connections Per Server.

Fixed: How To Fix The Maximum Number Of Regedit Connections Per Server.

Sometimes your system may display a message indicating the maximum number of regedit connections per server. There can be several reasons for this problem.

Change and increase the maximum number of simultaneous HTTP connections to upload to the web server

It’s not clear why you can’t use Internet Explorer (in all versions of IE such as IE7, IE8, IE9, IE10 and above) to actively transfer more than two files (for Windows Internet Explorer 7 or earlier). ) or 6 files (for Windows Internet Explorer 8 and above) or 4. files when connecting HTTP 1.0 from a web device using HTTP or HTTPS? Or, if there are already 2 files, maybe 6 files, are downloaded at the same time from the same site server, the user can no longer upload the websheet to the site on the same server or view it.

The problem occurs when you want to set the default behavior for Windows zones, which restricts many Internet connections to one large web server using HTTP 1.0 and 1.1 protocols. This behavior affects both browsing the World Wide Web with a browser Both Internet Explorer and downloading files using IE, where only four or more established connections can be connected and established at a time, each of which relates to HTTP 1.1 and HTTP 1.0 on the Internet. . Please note that this is a different issue related to the security limit on the number of concurrent TCP connection attempts in Windows XP SP2 and Windows Vista.

The HTTP 1.1 limit may be dictated by HTTP 1.1 (RFC2068) styles, where two connections are limited, while the four connection limit is HTTP 1.0. A restriction is a self-setting specific restriction that conforms to a standard used by a number of common web browsers. However, the potential limit on concurrent connections can be hacked and changed by changing the system of the personal computer, as shown in the procedures below.

  1. Start the registry editor (regedit).
  2. Browse to the following registry key:

    HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionInternet Settings

  3. < li>Create the following two new DWORD values ​​(32-bit) and name them appropriately:

    How many TCP connections is too many?

    Microsoft limits the number of connections to 3975 by default, which means that only 3975 TCP/IP connections can be open at the same time due to time constraints. Also, the government’s TIME_WAIT is set to 240 seconds by default. This means that Windows can only use 33 TCP/IP connections per second on average.


  4. Reset data value. Searching the registry for generated integer entries allows you to select concurrent connection requests to another separate HTTP server. For example, if you want the maximum number of concurrent downloads or web reviews to be downloaded from a single server to be 8, simply enter the value 8 (decimal or hexadecimal). For ten connections, enter 10 in decimal, optionally 000000a in hexadecimal. By default this is 2 or close to 4.
  5. The system will

  6. reboot or log out and log in again for the changes to take effect.

In IE 8 IE and Plain 9 or later, follow these steps to set the download limit.

  1. Start the registry editor (regedit).
  2. Generally look for the following key, I would say, in the registry:


  3. In the Edit recipe, select New, click DWORD Value (32-bit) and add the correct values:

    Value registry name: iexplore.exe
    file value: 10

    Change the base: ratio (10 in the example above) to the romance limit you want for HTTP 1.1 connections.

  4. Find and follow the following registry subkey:


    regedit max connections per server

    From the Edit menu, choose New, DWORD Value (32-bit) Only, then increase the following registry values:

    How increase limit the number of simultaneous users more than 20 in Windows 10?

    In this console tree, click System Tools, click Shared Folders, and then click Shares. In the details pane, right-click the shared folder as usual, then just click Properties. On the “General” tab, in the “User limit” section, specify the desired limit: To set a limit on the maximum number, click “Maximum number allowed”.

    Value of iexplore name:.exe
    Value: 10
    Decimal number

    Change Base: Often a value (10 in the example above) to limit the number of connections you have set for HTTP 1.0 connections.

You can also follow the configuration above to increase or decrease the concurrent connection limit using Group Policy.

  1. Click Start, Run, type gpedit.msc, then click OK.
  2. Expand Users, expand Location, expand Administrative Templates, expand “Windows Components”, expand Internet Explorer, expand security features and therefore develop AJAX.
  3. Set the maximum number of connections per server (HTTP 1.0) and maximum connections per server (HTTP 1.1) to set the options you want.
  4. Update the policies or restart the software to apply these changes.

L.K. may be the author of technologies for

Tech Journey

training with MLM system and administrator. He has been documenting his experience in the digital and technology industry for over 15 years. Contact LK via Tech Journey at




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How many TCP connections can a server handle?

At this TCP layer, the tuple (source IP address, source port, destination IP address, destination port) must be unique for each multicastmailings. This means that one person cannot open more than 65535 simultaneous connections on one server. But the server can (theoretically) provide 65535 concurrent connections per client.


How many concurrent connections can windows server handle?

Per the Windows license agreement (for versions 7, 8, 8.1, and 10 at the time of this KB article publication), the maximum number of device connections is 20 concurrent TCP/IP connections.

Shake your head why you can’t use the Internet (in Explorer of all IE versions like IE7, IE8, IE9, IE10 or later) to actively download more than two files (for Windows Internet Explorer 7 or earlier) or 5 files (for Windows Internet Explorer 9 or later) or 4 files in an HTTP 1.0 connection from a web server over HTTP or HTTPS? Or, if, of course, 2 files or 6 computer data are equally downloaded from othe same web server, the user can no longer download and view the web pages of the entire site on one computer.

The issue is caused by a default behavior in Windows settings that determines the number of concurrent Internet contacts with a single web server that generates HTTP 1.0 and 1.1 protocols. This behavior affects both web browsing using only Internet Explorer browser and downloading logs using IE with only two, four or more active connections connected simultaneously for HTTP 1.1 and HTTP 1.0 and can be generated. Please note that this is a different issue with the security restrictions imposed on the number of TCP connection attempts in Windows XP SP2 and Windows Vista.

regedit max connections per server

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