Super User is a question and answer site for computer enthusiasts and power users. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

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?

share|improve this question

migrated from Oct 26 '11 at 22:35

This question came from our site for system and network administrators.

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: – damluar Oct 26 '11 at 22:20
up vote 9 down vote accepted

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

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

share|improve this answer
I checked, it's true. Thanks! – damluar May 8 '12 at 19:28

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.

share|improve this answer
That's just incredible. – Shane Madden Oct 26 '11 at 22:20
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
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
  1. Set your IP manually to something in the 169.254.1.x range (
  2. Unplug the router and wait 10 seconds Plug it back in
  3. Open a command windows (cmd) and do ping -t
  4. As soon as you get reply's go to the webinterface at
  5. You have a option 'click here if you forgot your password' (click on here)
  6. Then click 'Restore factory settings' (This option disappears after about 10 minutes)
share|improve this answer

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 After that follow the instructions for a password reset, which also does a factory reset.

share|improve this answer
Hi, thanks. But I can't connect to it. I tried DCHP, tried manual setting of my IP like No way... – damluar Oct 26 '11 at 22:24

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.

share|improve this answer

You must log in to answer this question.

protected by Community Jun 1 '13 at 10:00

Thank you for your interest in this question. Because it has attracted low-quality or spam answers that had to be removed, posting an answer now requires 10 reputation on this site (the association bonus does not count).

Would you like to answer one of these unanswered questions instead?

Not the answer you're looking for? Browse other questions tagged .