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The problem is that after power outage the router sometimes loses its configuration. Is there a way to store settings so they will survive any power outage? Or do you know any routers that by default have Wi-Fi disabled and don't allow connections to its administration panel (unless you e.g. physically push some button).

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closed as off topic by Khaled, Ward, Michael Hampton, Scott Pack, HopelessN00b Sep 25 '12 at 11:47

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You may have better luck with this question if you say which model routers you are currently using. –  dunxd Dec 20 '11 at 10:57
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Wireless is disabled by default on any router that doesn't include wireless functionality ;-)

I think you could probably achieve this using open source firmware on the router. Here's a couple of examples that will work on quite a few Linksys routers:

You should be able to edit the defaults in the config file in the source code, then recompile and apply to your router.

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OK. I think I could recompile Tomato with different defaults. This should work. Would be better to have a ready and tested solution but I guess this will do. –  Nux Dec 20 '11 at 11:48
    
It isn't really tested unless you tested it yourself in your own environment :-) –  dunxd Dec 20 '11 at 15:46
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I'm betting that you're using off the shelf consumer grade routers?

That's basically your problem - they're not designed for it. I don't know of any wireless router that would have wireless disabled by default- it sounds like you need a wired router..

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No, I need wireless connections that are secure or off under any circumstances. It don't have to be shelf consumer grade, but I wouldn't mind if it has a low price ;-). Theoretically easy to do - there are many kinds of low cost NV memory. Practically - I just don't know. That's why I asked :-). –  Nux Dec 20 '11 at 10:55
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