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I need to change the setting of router Fritz Box. The setting were set by another person. I can't connect to router using cable, may be standard port or address were changed. So the only option is to switch to factory settings. Usually there is a button which deletes all the settings. I read the documentation and they tell to call the number #991*15901590* on the router. Do I have to connect telephone to router?

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What's the exact model number of the Fritz Box? It'll be something like WLAN 7390 or WLAN 7270. – gravyface Oct 26 '11 at 22:11
It's difficult to say, cause it's not written on the router. It's just "Fritz!Box von WLAN". But it looks like 7113: avm.de/de/Produkte/FRITZBox/FRITZ_Box_Fon_WLAN/index.php – damluar Oct 26 '11 at 22:20
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migrated from serverfault.com Oct 26 '11 at 22:35

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4 Answers

up vote 1 down vote accepted

I had the same problem, but no analogue telephone at hand. So i tried it with wireshark to find my "lost" fritz.box (i chose: "get IP from DHCP") without success.

After some reading i found a solution: The fritz.box 7170 is always available on http://169.254.1.1. (Just set the IP address manually in the range of 169.254.1.x)

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I checked, it's true. Thanks! – damluar May 8 at 19:28
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up vote 3 down vote

I'm reading through the manual now of this (bizarre) WLAN/router/ADSL modem combo appliance. Yes, it does appear that you need to find an analog touch-tone phone and plug it into the RJ11 (telephone) port on the device and dial those keys to reset it to factory default if you do not have the password (the manual states that it cannot be recovered without factory reset).

Hopefully you have your PPPoE/ADSL authentication information from your ISP, otherwise you'll have to call them to have it reset.

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1  
That's just incredible. – Shane Madden Oct 26 '11 at 22:20
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I know. #mindblown – gravyface Oct 26 '11 at 22:21
Thanks! Now I will search for the phone) – damluar Oct 26 '11 at 22:22
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Boo for no pulse dial support, though! Discrimination against rotary phones! – Shane Madden Oct 26 '11 at 22:23
If the thought of hunting around for a telephone isn't persuasive enough to look for a new router, you might like to know that Fritz!box is in a GPL dispute at the moment (according to wikipedia), which could go badly for the company and they may end-of-life your product. – gravyface Oct 26 '11 at 22:27
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up vote 2 down vote

Yes, you have to connect an (analog) telephone to the box.

Or connect via cable, set your PC to get an IP via DHCP and then browse to http://fritz.box. After that follow the instructions for a password reset, which also does a factory reset.

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Hi, thanks. But I can't connect to it. I tried DCHP, tried manual setting of my IP like 192.168.178.10. No way... – damluar Oct 26 '11 at 22:24
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up vote 2 down vote

Yes. Connect the analogue telephone to the router and dial the number. You should hear a long beep in the handset and it should revert to factory settings.

If this doesn't work, try firmware recovery and/or update.

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