Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I am using Windows 7. Problem is while using internet in Wireless if i connect LAN cable to my laptop, it stop Wireless connection and Wired Connection gets active.

I am using Internet using Wireless and doing my work through Wired Connection. I want to use Wireless and Wired Connections both at same time

HOW to use wireless and wired connection at the same time?

share|improve this question

migrated from stackoverflow.com Sep 26 '12 at 6:42

This question came from our site for professional and enthusiast programmers.

    
I'd like to ask along with this, if they are being used at the same time would there be any significant increase in speed? I would assume only if the bandwidth at the router is larger that its LAN or WAN can provide; making the two connections each do "half the work"? – KDecker Sep 17 '14 at 1:22

Chances are, your laptop's wireless card has a "disable on wired connect" feature configured as a default.

  • In Windows 7 Control Panel, launch Network and Sharing Center
  • Click "Change Adapter Settings"
  • Right-click the wireless adapter you're using
  • Left-click "Properties"
  • On the Networking tab of the Wireless Network Connection Properties window, click "Configure"
  • That will display the properties window of the wireless card.
  • Click the "Advanced" tab and see if there's an option for "Disable on wired connected" or similar language.
  • If there is, and it’s enabled, disable it.
share|improve this answer
    
This doesn't explain what to do if there is not a "Disable on wired connection" option, and is not entirely consistent with what happens on my system (Windows 7, SP1). I've created a new answer with more details. (I could have revised this answer, but if it's correct on other systems it would make it wrong for them.) – Steve Feb 27 at 10:50
    
In my case it was "EnableAdaptivity" which was disabled and I changed it to Enable (also it has an "Auto" option which I don't know what it does). Anyway enabling that caused my wireless not being disable when a network cable is connected to ethernet port. – Ashkan Jun 5 at 11:18

The trick is to change the network card priority so that the wireless connection remains active when a wired connection is made.

The first step is to get to the "Control Panel > Network and Internet > Network and Sharing Center" page. On the left side of that page, click the link "Change adapter settings". This should bring you to the "Control Panel > Network and Internet > Network Connections >" page.

Select the wireless connection, right-click "Properties", and provide an admin password (if necessary). This should bring you to a dialog box named [wireless connect name] Properties".

In the list box titled "This connection uses the following items:", scroll down to "Internet Protocol Version 4 (TCP/IPv4)" and select it. The "Properties" command button will enable; click it. This should bring you to a dialog box named "Internet Protocol Version 4 (TCP/IPv4) Properties".

Click the "Advanced" command button. This should bring you to a dialog box named "Advanced TCP/IP Settings".

Near the bottom of the dialog box, there should be a check box named "Automatic metric". Uncheck it. That will enable a text box named "Interface metric". Fill in a number. It needs to be larger than 1 (reserved for loopback) and the number you choose for the wired network (see below).

Click three "OK" command buttons to return to the "Control Panel > Network and Internet > Network Connections >" page.

Repeat the above for the wired connection:

Select the wired connection, and right-click "Properties" to get to the [wired connection name] Properties" dialog box.

Select the IPv4 list entry and click "Properties", and on the next dialog box click "Advanced".

Again Uncheck "Automatic metric", and fill in a number in the "Interface metric" box. It needs to be larger than 1 but smaller than the number you chose above.

I would assume that it's also possible to give the wired network higher priority than the wireless, but I didn't test that.


Comment: Some other answers asked why one would want to do this. It's not for improved throughput; I doubt that Windows could effectively divide traffic between two networks like that. Instead, it's so that the machine can be connected to two distinct networks. In my case, the wireless network goes to my ISP, and the wired network goes to my Network-Attached Storage server.

Note: I found this general idea on a How-To Geek article titled "How to Change the Priority of Wired/Wireless Network Cards in Windows". The article has screen shots, but I've included a summary in case the link goes dead, and explained it somewhat differently.

share|improve this answer

This might be a little late, but yes you can do that, you need a Cisco router though...

Cisco routers are able to make two connections to one device, what you're looking for is either unequal cost path load balancing, or equal cost path load balancing. The router will transfer the data through both connections, if you want maximum speed you're best bet is getting a Cisco Gigabit router with wireless-N, or wireless-AC. Hope this help

share|improve this answer
    
This is only useful if you're trying to connect both the wired and the wireless network to the same things. Normally, one the reason to have more than one type of network would be for different types of traffic, such as an ISP and a backup server. – Steve Feb 27 at 11:01

you should bridge the connections.

  1. On the Windows 7, click on the Windows icon. Type view network connections and press Enter.
  2. Identify your Ethernet connection and your wireless connection. The Ethernet connection is called Local Area Connection and the wireless connection is called Wireless Network Connection.
  3. Click on Local Area Connection to select it.
  4. Press and hold the Ctrl key and click on Wireless Network Connection to select it. Now you should have both connections selected.
  5. Right click on the selection and select Bridge Connections.
share|improve this answer
    
I did same what u said but now i can only use Wireless connection but not Wired connection – user1379055 May 7 '12 at 8:25
    
Secondly i get IP from Wireless same as of previous – user1379055 May 7 '12 at 8:25
    
but now IP from Wired network changed :( and i cant access Network connection – user1379055 May 7 '12 at 8:26
    
I tried to create a bridge, and it appeared to work. I assume the machine on the Ethernet side could connect to the wireless network, but my Windows machine couldn't see either side of the bridge. – Steve Feb 27 at 10:52

There is no point to doing this since you will only be connecting twice to the same end router with the same WAN bandwidth. The fact you have 2 connections might increase redundancy but is pointless in a household environment.

Secondly, Windows does not know how to manage 2 connections simultaneously. For example, to establish a connection to a website you must perform a 3-way handshake before data is transferred using packets which contain the destinations mac address. Your router will send to the same interface which requested it because that's where the application layer (Windows) will expect the specific packet to arrive.

share|improve this answer

protected by Community Sep 17 '14 at 2:41

Thank you for your interest in this question. Because it has attracted low-quality or spam answers that had to be removed, posting an answer now requires 10 reputation on this site (the association bonus does not count).

Would you like to answer one of these unanswered questions instead?