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

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Archive for the ‘Network-and-equipment’ Category

Updating a Unifi Controller (either a Cloud Key, or a local installation like a VM)

Posted by jpluimers on 2021/07/27

Note that by now, Unifi Controller is usually named Unifi Network Management Controller (somewhere in between it was called Unify Network Controller).

You can either run a local installation on a Linux box (usually Ubuntu), for instance the CloudKey ESXi Appliance, or from a Cloud Key (if you do, do not get a version 1 Cloud Key; too much SD card and other hardware trouble)

Steps to update both the Unifi Controller Firmware (Cloud Key only) and the Unifi Controller software (both Cloud Key and local installation) are below.

I am assuming that is the IP address of your Cloud Key, and for brevity, I included few screenshots, but opted for URLs.

Devices steps

  1. Logon to your Cloud Key at
  2. Go to the devices page
  3. Ensure the filter is “APs” (either through the dropdown when your tab is narrow, or the button when the tab is wide)
  4. Press the “Start rolling update” button.
  5. Confirm the rolling update
  6. Wait for the rolling update to finish

Screenshots for selecting “APs” with narrow and wide tab widths:


Read the rest of this entry »

Posted in Cloud Key, Network-and-equipment, Power User, Unifi-Ubiquiti | Leave a Comment »

Fritz!Box as DMZ behind an Experiabox version 10A

Posted by jpluimers on 2021/06/17

First of all: incoming Fritz!Box VPN behind an Experiabox version 10A fails, because the DMZ implementation of the Experiabox is faulty.

This worked just fine with the Fritz!Box as DMZ host behind a Ziggo Connectbox ([WayBack] Connectbox | Klantenservice | Ziggo).

First a few things to get regular TCP stuff to work: having your Fritz!Box as the DMZ host of an Experiabox.

I had a hart time figuring out some of them, so further below are also quite a few links just in case you bump into simular things.

  1. On the back of the Experiabox version 10A you find the SSDI and WiFi password on what appears to be a sticker, but is in fact a small piece of cardboard paper.

  2. Behind that cardboard paper is a sticker with the initial administrator password: shove out the piece of cardboard to reveal the sticker.
  3. After login (you cannot change the username, which is ADMIN or KPN) you have to choose a new password, which has these undocumented restrictions:
    • It cannot be the old password
    • The password must contain at least 1 special character (!@#$%^&*()_+|~- =\`{}[]:";'<>?,./).
    • The password must contain at least 1 number character.
    • The password must contain at least 1 uppercase letter.
    • Other restrictions I have not bumped into
  4. The default address of the Experiabox V10a is Do NEVER change it, as KPN totally does not support that scenario and will force you to reset it before starting to help you out with anything. Logon as Administrator to the Experiabox at
  5. Setting fixed DHCP leases was hard to find (I was looking for fixed DHCP, not DHCP reservation): Network -> LAN -> LAN DHCP (dropdown next to LAN) -> DHCP Reservation (up to 10 computers).

  6. The DMZ setting was not where I expected it: Network -> Firewall -> DMZ (dropdown next to Firewall)


External port checker: [WayBack] Open Port Checker & Scanner | Test Port Forwarding | Internet Protocol Tools



Posted in Network-and-equipment, Power User, VPN | Leave a Comment »

CloudKey ESXi Appliance – Google Search

Posted by jpluimers on 2021/06/07

Via [] CloudKey ESXi Appliance – Google Search:


Posted in *nix, Cloud Key, ESXi6, ESXi6.5, ESXi6.7, Internet, Network-and-equipment, Power User, Unifi-Ubiquiti, Virtualization, VMware, VMware ESXi | Leave a Comment »

Reminder to self: get less dependent on the various clouds

Posted by jpluimers on 2021/06/04

For my link archive: [WayBack] Grote Google-storing trof Gmail, YouTube en diensten van derden – IT Pro – Nieuws – Tweakers.

It has some interesting tips for IoT video doorbell products that are less depending on single-choice clouds:

Er bestaan er minimaal eentje; smart deurbel met camera en evt speaker, eigen intern netwerk, compatible met SIP (en video), zelf verantwoordelijk voor opnamen, etc. Enige nadeel is dan wel de prijs, het is een Duits kwaliteitsproduct, dus reken rond de 350 euro voor het absolute basismodel. Doorbird heet het; oa te koop bij Robbshop en CoolBlue of direct bij de fabiraknt’s website.


Je moet je huis flink geautomatiseerd hebben wil je echt nut van die api willen hebben.

als je alles zelf in de hand wil hebben doe je dat ook. Je zorgt er zelf voor dat je webinterface via een externe URL bereikbaar is en dan is het enkel je eigen hardware en internetverbindingen die als SPOF dienen en je kan dan ook makkelijker van solution-provider wisselen zonder vast te zitten.


wellicht is dit een oplossing voor jou?




Posted in Cloud Apps, Internet, IoT Internet of Things, Network-and-equipment, Power User | Leave a Comment »

Unifi Cloud Key: “We have detected that your SD card is missing. Please insert it and reboot your Cloud Key or disable automatic backup.”

Posted by jpluimers on 2021/04/23

Got this a while ago with 5.10.17:

“Missing SD card”

“We have detected that your SD card is missing. Please insert it and reboot your Cloud Key or disable automatic backup.”

This might be a hardware issue with [] Ubiquiti UniFi Cloud Key, UC-CK: AmazonSmile: Computer & Zubehör

Reading the 1-star reviews, SD-card problems seem paramount: [] Ubiquiti UniFi Cloud Key, UC-CK.

For me, most of the times this solved the problem:

  1. Power down the Cloud Key
  2. Remove the SD card
  3. Insert the SD card
  4. Power up the Cloud Key

Read the rest of this entry »

Posted in Cloud Key, Hardware, Network-and-equipment, Power User, Unifi-Ubiquiti | Leave a Comment »

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