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Can I connect to two networks at once?

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I have two computers, on a laptop, and one a desktop, they are connected wirelessly through a network hub, that's not a problem, but I have an estimating software that requires a wired connection between the two computers, Tech support has explained to me that this is due to the high volume of data that is transferred between the two computers, much to large for a wireless connection. Well, I have a ethernet network wired throughout the office, and both computers have a nic card, so my question is, is it possible to have two network connections on each computer, one through the ethernet wiring, and the other trough wireless (this one connects other computers for file sharing and internet)? Do i need separate workgroup names for each network connection?

It's definitely possible to have multiple network connections to the same computer. But in order to make sense, they really need to be different networks. Otherwise you might not get the results you're looking for.

By different networks I mean ... well, different networks. Different collections of machines.

Here's what I mean: you current have two machines, A and B, that are connected to a wireless network. I presume that you can, for example, copy files between the two machines today. If you connect both of them to a wired network, in addition, then there are two paths to get between the machines: the wireless connection and the wired one.

How does Windows decide which to use? Well, while I'm sure there's an algorithm behind it, the best way to think of it is that the first time the two machines try to talk to each other, the connection used is selected randomly - it could be on either network. From then on (I believe until both machines are rebooted, or their cache of network information is flushed), the conversations between the two machines happen across the single network.

In your case if they happen to choose the wireless network, then you haven't solved you problem.

Now, if the hardwired network is a different network ... meaning that machines on the wireless network cannot connect to machines on the wired network, then adding both machines to the wired network may work, but only if you remove one of them from the wireless network, so they can't "find each other" via the wireless path.

But my question is this: if the two networks are really the same network - meaning that you can get to all the same resources using either the wired or the wireless networks - and you need to connect to the wired network for speed - why stay connected to the wireless? Clearly you're tethered by wire, so the machines certainly aren't mobile.

I'd simply avoid the entire issue and disable the wireless adapters in the two machines, connect them both to the wired network, and be done with it.

Article C2383 - July 7, 2005

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Recent Comments
132 Comments

hi, I have two seprate internet connections one through wired and other through WI max my question is how to connect both these to one laptop so that if one connection is slower the other should support and give me constant speed, both my wired and wimax are 2mbps speed please help

Posted by: sujay at December 5, 2009 12:04 AM

Hello I have a question; i have one desktop machine with 2 network interface card. one Broad Band is for internet connection and the other is for the connection of our Office software.
Broad Band has the IP Add of 192.168.1.4 with subnet of 255.25.255.0 and supported with gateway 192.168.1.1

for Office software: The IP add is 11.30.218.217 subnet 255.255.0.0 and gateway 11.30.200.1

My problem is i can't connect to my Office software(Using algratham that is Account Software that Default Gateway195.168.1.1, IP also 195.168.1.XX) if Broad Band is enabled, i have to this disable it to be connected to internet.
any advice on how to deal with this two connections without disabling one of them?

Posted by: ramesh at December 19, 2009 12:36 AM

I have a problem in my network..i have two nic in my pc and i have one ip for internet 192.168.1.101.subnet:255.255.255.0 & gateway 192.168.1.1 ..second nic has ip's 13.13.13.29 sunet:255.255.255.0 & gateway:13.13.13.1....i want to conneted to internet & at the same time connected to my office network..if anybody can help me..plzz mail me....

Posted by: vikas at January 23, 2010 10:41 PM

We have two machines A & B, Both are placed in two different location (Distance 3 KM) and we have two different network AP & CB both are inter connected.
and another option is lease line connection connected physically between A & B. How to connect lease line & wireless connection at a time for transferring data don't want lose data.
have you any idea for my question forward us early as possible thanks.

Posted by: Alok at February 18, 2010 10:23 PM

We have two machines A & B, Both are placed in two different location (Distance 3 KM) and we have two different network AP & CB both are inter connected.
and another option is lease line connection connected physically between A & B. How to connect lease line & wireless connection at a time for transferring data don't want lose data.
have you any idea for my question forward us early as possible thanks

Posted by: Heera puri at February 20, 2010 9:16 PM

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