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I have WRT54G Linksys router and don't want to have Wifi on 24/7 when I don't need it - for health concerns (less so for digital security). Is it sufficient to change the setting on the wireless web interface? Or am I better off unplugging power on the router? It does not seem to have on/off button.

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What do you mean by "really turn it off". How "off" do you need it? What have your tests shown? IMO, If you're worried about health concerns from electronic devices, then unplugging them is always the best option. ;) –  techie007 Nov 3 '12 at 15:55
    
off = not transmitting any signals, in my naive understanding –  Joe Nov 3 '12 at 16:01
    
What makes you believe it's still transmitting signals after you've set it to disabled? –  techie007 Nov 3 '12 at 16:13
    
nothing, except for paranoia:) I want to understand what that setting actually does, compared to unplugging. I do know that I can't access WIFI once I set it to "disabled", so I have good reason to believe it's working as expected - the question is to get confirmation and better understanding. –  Joe Nov 3 '12 at 16:21
    
Get a Wifi meter. :) If you've got a smart phone there's a few free apps that do a good job at WiFi signal detection. –  techie007 Nov 3 '12 at 16:24
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closed as not constructive by techie007, Mokubai, ChrisF, Canadian Luke, soandos Nov 3 '12 at 23:20

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Yes, it does.

If you are further concerned - I can't remember whether it has removable aerials but if it does, remove them. Then even if the transmitter came on, there would be virtually no output at all.

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