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Windows 7: Use "USB Modem" (3G) for Internet and LAN (Ethernet) at the same time.

07 Oct 2011   #1

Windows 7 Ultimate x64
Use "USB Modem" (3G) for Internet and LAN (Ethernet) at the same time.


My question is very simple, but I not found anywhere on the Internet an appropriate response.

Where I work, need to be connected to the LAN (Ethernet) in order to access remote servers, however these networks do not have Internet access. To access the internet I use a "USB Modem" (3G).

Question: I want to use the "USB Modem" (3G) for Internet and local area network (LAN) (Ethernet) at the same time.

Problem: Windows 7 not let me do this, since when I plug the "USB Modem" (3G) the LAN (Ethernet) is disconnected.

Note: They suggested me to create "a bridge" between the two networks, but this option is not available even if I release all shares in connection "USB Modem" (3G).

Any suggestions?!

Thank you!

My System SpecsSystem Spec
08 Oct 2011   #2

Linux CENTOS 7 / various Windows OS'es and servers

Hi there
Not sure what the problem is --since you are already connected to the network via your LAN.

Now just also connect to wireless network via your wireless / usb type card -- I assume it's one of those USB data modules that are very common now like HUWEI usb modules.

W7 shouldn't disconnect an existing LAN connection.

set your Internet connection up in properties or whatever to use the network connection of the WIRELESS network. You should see in your Network connections that you are connected to several (i.e more than 1) Networks.

Just assign the Internet properties to the correct network.

My System SpecsSystem Spec
08 Oct 2011   #3

Windows 7 Ultimate x64
Use an USB modem for internet while I can access the ethernet devices

Hi Jimbo!

Thanks for your reply!

Yes, is a device of the same kind of a Huawei 3G USB modem.

As you say, when I turned the USB modem ON, the ethernet local network (wired) is not disconnected. However, when I do that I can not anymore access local network devices. For example, I can not ping the servers that are in my ethernet (wired) when I'm connected to the internet using the USB modem.

What I want is just to use USB modem for internet while I can access the devices (servers) on my ethernet LAN.

Eduardo Lucio
My System SpecsSystem Spec

20 Jul 2012   #4

Windows 7 Ultimate x64

Use "USB Modem" (3G) for Internet and LAN (Ethernet) at the same time.

I have same problem. I cannot connect to LAN while I connect with GSM Modem. I want to use LAN and GSM Modem Both at the same time. Help Please
My System SpecsSystem Spec

 Use "USB Modem" (3G) for Internet and LAN (Ethernet) at the same time.

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