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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for the ‘Fritz!Box’ Category

Fritz!Box repeater and other devices: “Radar detection enabled. At the moment no wireless LAN connection (5 GHz) is possible; please wait.”

Posted by jpluimers on 2021/05/31

If any of your Fritz!Box devices under “Wireless” -> “Radio Channel” -> “5-GHz band”  the indicates “Radar detection enabled. At the moment no wireless LAN connection (5 GHz) is possible; please wait.” – Google Search:

  1. Click on the “Refresh Auto Channel” button
  2. Wait until it has chosen a new 5Ghz channel
  3. Verify you can connect over 5Ghz
  4. If you still cannot connect, retry steps 1…3 once.

I had this only happen on 1750E repeaters so far, but others seem to have had it on other Fritz!Box devices as well.

In the Netherlands, potentially affected channels seem to be 52 through 140.

Related:

–jeroen

Posted in Fritz!, Fritz!Box, Fritz!WLAN, Internet, Power User | Leave a Comment »

Firewall whitelist for Windows Update

Posted by jpluimers on 2020/08/14

In the end, this list worked on a Fritz!Box, but I still do not know which other subdomains and protocols they silently let pass:

windowsupdate.microsoft.com
*.windowsupdate.microsoft.com
*.update.microsoft.com
*.windowsupdate.com
download.windowsupdate.com
download.microsoft.com
*.download.windowsupdate.com
test.stats.update.microsoft.com
ntservicepack.microsoft.com
update.microsoft.com
*.update.microsoft.com
*.download.microsoft.com
windowsupdate.com
wustat.windows.com
login.live.com
mp.microsoft.com
*.mp.microsoft.com
www.update.microsoft.com
support.microsoft.com
www.msftconnecttest.com

Some source materials:

–jeroen

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Posted in Fritz!, Fritz!Box, Internet, Power User, Windows, Windows 10, Windows 7 | Leave a Comment »

Using an Fritzbox as DECT-Repeater – PC-WELT

Posted by jpluimers on 2020/04/03

I totally forgot it was possible to usie an old Fritz!Box to act as a DECT repeater:

Um die Abdeckung von DECT für mobile Festnetztelefone zu verbessern, lässt sich eine ältere Fritzbox verwenden.

Source: [WayBack] Ältere Fritzbox als DECT-Repeater verwenden – PC-WELT

Via: [WayBack] Bludau Media – Google+

–jeroen

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RP-SMA dummy loads for nonadjustable WiFi devices and Adjust Fritz!Box WiFi power – via Knowledge Base | AVM International

Posted by jpluimers on 2019/07/19

Via [WayBack] Knowledge Base | AVM International:

3 Setting the maximum transmitter power

  1. Click “Wireless” (“WLAN”) in the FRITZ!Box user interface.
  2. Click “Radio Channel” in the “Wireless” (“WLAN”) menu.
  3. If the option “Set radio channel settings automatically (recommended)” is enabled, proceed with the following section.
    • If the option “Adjust radio channel settings” is enabled:
      1. Click “Additional settings”.
      2. Select “100%” from the drop-down list “Maximum transmitter power”.
      3. Click “Apply” to save the settings.
For me, having minimal power was important since every now I needed to be able to connect to it, but only when I was in close proximity.

Hence the settings below: 6% Maximum transmit power is the lowest I could set.

For devices that cannot adjust their antenna output power which have RP-SMA connectors, I bought these to effectively throttle them:

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Not all Fritz!Box devices can be upgraded to the most recent firmware

Posted by jpluimers on 2018/11/30

I forgot to document this earlier.

Many Fritz!Box devices cannot be upgraded to recent firmwares. The behaviour differs on hardware revisions of the same model. I’ve seen it happen on Fritz!Box 7360 devices, but others are could be affected too.

You can get the firmware revision using the trick here: FRITZ!Box call http://fritz.box/cgi-bin/system_status.

If your hardware revision is affected, do not expose it to the outside world.

You could still turn it into a local switch though: [WayBackConvert FRITZ!Box 7360 to Managed Switch (or even Access Point) having it’s own IP address: Setting up the FRITZ!Box as an IP client.

I did this before even discovering about the hardware revision limits as I wanted to keep the full phone history when migrating from ADSL to fiber (which came with a brand new Fritz!Box 7490) and could use the extra LAN ports.

Fritz!Box 7360 hardware revision v1: limited to firmware 06.3x

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