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I have a cable modem provided by the ISP, wich also is a wifi access point, but the wifi signal doesn't reach a room located in another floor of my house.

I have a D-Link DIR-300 router and I wonder if is it possible to use it as a repeater of the AP to get a stronger wifi signal. If it is possible to do it, are there any good "how-to" tutorial freely available so I can get this setup working?

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up vote 3 down vote accepted

You can flash it with DD-WRT and set it up as an AP Repeater.

Here is the tutorial for flashing your router based on Revision A, please make sure you have the correct revision so that you do not brick your router.

After you flash it with DD-WRT, here are the instructions on setting it up as an AP Repeater.

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Link to instructions is broken :\ – Rafael Verger Aug 20 '13 at 18:02

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