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Internet connection redundancy

Posted on 2009-05-04
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Last Modified: 2013-12-14
I need to setup internet redundancy in my server (Win XP) located in my office.

I'm thinking,
C1: One internet conn uses my Network card
C2: One uses Wifi via a USB wifi dongle
C3: One uses USB port from a USB broadband modem

My question is,

Say currently my app is using C1, then when C1 is down, how will my PC switch to the other available connections? Will they auto switch? If not, is there a software in the market (affordable or free) that can auto switch for me?

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Question by:melwong
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Expert Comment

by:Kamran Arshad
ID: 24302018
Hi,

You can set the metrics for each connection.

Go to

ControlPanel--->NetworkConnections--->Right click on connection and go to properties ---> Properties of TCP/IP--->Advanced---> Now uncheck the automatic metric and assign metrics for default connection and assign higher for the other connections.

Alternatively you can use a multi-WAN router and terminate all the connections on that router. It will automatically perform the load-balancing and fail-over. Below are good links of multi-wan routers;

www.peplink.com
www.edimax.us
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Author Comment

by:melwong
ID: 24323422
what does this metric means?
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Accepted Solution

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Kamran Arshad earned 375 total points
ID: 24323995
Thanks for the update. Please read the below article;

http://technet.microsoft.com/en-us/library/cc779696.aspx
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