Apple iOS Shortcut: Install Wi-Fi diagnostics profile to your iPhone the easy way

Apple developed a diagnostics profile that allows you to monitor and troubleshoot Wi-Fi connectivity. Unfortunately, it is only available for 7 days after installation. After that, it get automatically removed. If you are a Wi-Fi professional, that means that you need to reinstall it every few days. Yes, it always disables when you are on site and need it the most :)

Manual installation of the profile – the hard way

Normally, I would google something along the lines of “Apple Wi-Fi diagnostics profile”, eventually I find the right link, log in, search for the iOS Wi-Fi profile on the Apple Developer website, download the profile, go to Settings > General > Profiles section, and I install it from there.

Wi-Fi diagnostics profile for iOS devices

What if there was a little tool that did most of the above for you?

The easy way

I put together a quick “Wi-Fi Profile” Apple Shortcut that removes some of these steps. Install the shortcut on your phone and it will guide you through the diagnostics profile installation every time you need it. It downloads the profile to your iPhone, lets you approve the installation and voilà, you open Wi-Fi settings and get RSSI measurements, channel details, BSSID and other useful info.

How to add the Shortcut to your phone

Download the latest version from my GitHub and follow the video instructions. Save it your home screen and execute it whenever you want to reenable Wi-Fi diagnostics.

See the shortcut in action

More shortcuts, anyone?

I wrote few other Shortcuts. Perhaps you are connected to a someone’s guest network, and would like to see who their access point vendor is? Your iPhone can tell you.

Or you use 2 iPhones and want to get a reminder when your secondary/test phone’s battery drops below 10%?

Convert Cisco Catalyst Wireless access point to Meraki cloud-managed mode

We have already converted a Cisco Meraki access point to Catalyst/DNA mode the other week.

Access point conversion from Catalyst/DNA mode (managed by Catalyst 9800 controller) to Meraki mode allows you to add a Catalyst Wireless AP to Cisco Meraki Dashboard, and fully monitor, and fully manage it from there.

Convert Catalyst/DNA AP to Meraki mode

Order the AP in the right mode

Order your access points in the right mode out of the box, and don’t worry about conversion. That’s the “-MR” SKU for cloud-management/SaaS model. If you wish to manage the APs by a Catalyst 9800 controller, simply find the right access point SKU and regulatory domain based on your coutry using this tool and reach out to your favourite Cisco Partner or distributor for a quote.

What do we need?

  • Catalyst Wireless CW9162I, CW9164I, CW9166I, CW9166D1, or CW9163E access point joined to a Catalyst 9800 series controller (hardware appliance, cloud instance, or virtual machine)
  • Cisco Meraki MR access point license

Let’s start the conversion

1. Make sure the access points you want to convert have successfully joined the Catalyst 9800 controller. Head over to Configuration > Wireless > Migrate to Meraki Management Mode.

Migrate to Meraki Management Mode

2. Select one or more APs you wish to convert and click the Migrate to Meraki Management Mode button.

Select APs

3. Wait for validation to complete. Click Next.

Validate that the AP can be converted

4. Tick Agree and continue and click Yes.

Take a deep breath and kick-start the process

5. Conversion has now finished. Note that each AP has a Cisco Serial Number and Meraki Serial Number. Copy the Meraki Serial Number.

Conversion has finished

6. While you are doing that, the AP rebooted and started the Meraki image.

AP has left the controller and is about to establish connectivity to Dashboard after reboot

During the boot process, the AP logs a message about the mode change.

Reset reason – AP converted to Meraki mode

And you will no longer have access to its Console port. If you connect a console cable, <Meraki> output will appear with no option to type any commands.

Console port output after conversion

7. Copy the Meraki Serial Number and log in to Cisco Meraki Dashboard. Open Organization > Configure > Inventory. Click Add devices, and paste the Meraki Serial Number of the AP.

Inventory
Add the AP by entering its Meraki Serial Number

8. From now on, the AP now behaves like any other Meraki cloud-managed access point. All monitoring and management features of the Dashboards are available. If you ever change your mind, and wish to convert it back to Catalyst/DNA mode, here is my step-by-step guide.

Useful WiFi Explorer Pro filters for finding rogue APs and APs with low minimum mandatory data rate

If you have not used WiFi Explorer before, get yourself a copy of the Pro version here. It is absolutely worth it and extremely useful tool if you have anything to do with Wi-Fi.

The Pro version (the Lite doesn’t) supports Filters. They allow you to filter scan results and get exactly the scan results you are interested in.

Find rogue access points

Let’s say you want to find APs that use other SSIDs than yours. This filter does just that. It shows all SSIDs other than CiscoLive or CiscoLive-WPA3. Simply paste this string into the Filters text field in the top right-hand corner.

dot11.net.ssid !~ "CiscoLive" AND dot11.net.ssid !~ "CiscoLive-WPA3"

Find APs using low minimum mandatory data rate

Other times you might want to look for access points that have minimum mandatory data rate configured to low – by mistake or by choice. In this example, I am interested in APs broadcasting these 2 SSIDs and using minimum mandatory rate of 6 or lower.

dot11.net.min_basic_rate <= 6 AND dot11.net.ssid ~~ "CiscoLive" OR dot11.net.ssid ~~ "CiscoLive-WPA3"

Download the cheat sheet

We have only scratched the surface. You can do so much more with filters.

Intuitibits, the makers of WiFi Explorer, published a great one-pager documenting the syntax. Get yourself a copy.

Convert Cisco Meraki MR access point to Catalyst DNA mode

Same hardware, your choice of management

The latest generation of Wi-Fi 6E Catalyst Wireless access points (CW9162, CW9164, CW9166 series) gives you the option to either cloud-manage them using Cisco Meraki Dashboard, or manage the APs by Cisco Catalyst 9800 series Wireless LAN Controller (WLC).

They are the exact same hardware and they ship pre-loaded with the Catalyst/DNA and Meraki software image. Depending on the mode setting, they either boot one image or the other.

What do we need

  • Catalyst Wireless CW9162I, CW9164I, CW9166I, CW9166D1, CW9163E access point in Meraki mode
  • Cisco Meraki MR access point license to perform the conversion
  • Cisco DNA Essentials or DNA Advantage access point license if you want to use join and manage the AP by a Catalyst 9800 controller

Choose AP mode before ordering

You will have the best experience when you order your access points in the right mode.

Order the right mode

Order a DNA persona AP and it will auto-discover your Catalyst 9800 controller using one of the supported methods. In the UK, I can order the “-ROW” AP and manage it by Catalyst 9800, and optionally add Catalyst Center (previously known as DNA Center) to get analytics, assurance and other great features. Find the right access point SKU and regulatory domain based on your coutry using this tool.

If you prefer, order the Meraki mode access point, connect it to the internet, and claim it in the Dashboard. Meraki APs use a single “-MR” SKU globally.

Conversion from MR to Catalyst/DNA mode

If you ordered a Meraki access point and your requirements have changed, you can convert the AP to DNA mode.

1. Make sure you have an active Meraki MR license. Why? We need the license to connect the AP to Dashboard, and to open a conversion request with Meraki technical support team.

2. Provide power and internet connectivity to the access point.

3. Log in to Dashboard. Navigate to Organization > Configure > Inventory and add the access point using its Meraki S/N.

Enter the Meraki S/N from the product label

4. Add your MR license to Dashboard under Organization > Configure > License Info.

5. Wait for the AP to connect to Dashboard and change its LED to solid green or solid blue. Perfect, the AP is now online.

6. Complete this checklist first. Disable Meshing feature and make sure your Catalyst 9800 is ready for the AP to connect after conversion has completed.

Disable Meshing feature

7. Open a new support case by clicking the (?) question mark in the top right hand corner > Cases > New Case.

8. Include all these details to speed up the conversion process. Find your Customer Number by clicking the person icon in the top right hand corner. To get your Daily Support Code, click the same person icon, then open My profile.

Hi,

Please convert my CW*****-MR AP with Meraki SN ****-****-**** to DNA mode. I do have an existing DNA license. I disabled Meshing in the Dashboard.

I have completed this checklist:
https://documentation.meraki.com/MR/Other_Topics/916X_Management_Mode_Checklist_and_Troubleshooting

I am aware that the AP will not join Dashboard after the conversion, unless I convert it back to MR mode.

Please go ahead and start the mode change immediately.

My customer number: ****-****
My support passcode for today: ****

Have a great day!

9. If this conversion is urgent, call into Meraki support. No, don’t e-mail the support team, call them. Have the case number by hand. Find the best phone number here.

10. After the support engineer starts the conversion, your AP will reboot. It is now in the Catalyst mode. You can verify that by keeping an eye on the Console port output during its boot. Just to remind you (and myself): The new Console port baud rate is 115200 from 17.12.1 release onwards.

Autoboot in 5 seconds
Catalyst Mode Selected

11. The AP should now follow the standard Catalyst LED pattern. It is ready to be managed by a Catalyst 9800 series controller – be it a hardware appliance, virtual machine, or public cloud instance.

12. Our DHCP server assigned an IP address to the AP, which has automatically discovered and joined the WLC located in the same IP subnet.

Successful WLC discovery and AP join
Followed by automatic software image upgrade
The AP has joined the WLC and is ready for use

To enable SSH and Console access, create a username, password and enable password in the Catalyst 9800 controller’s AP Join Profile > Management > User section. SSH protocol is disabled by default. You can enable it in the AP Join Profile.

You have full Console access and control over the AP

Will faster micro SD card make my WLAN Pi M4 boot faster?

No, it will not, unless you make some bad choices. But, faster card will make your life easier and significantly speed up the image flashing process.

Tests performed

  • Flash and verify WLAN Pi 3.1.4 software image to the micro SD card using built-in card reader of MacBook Pro M2 and Balena Etcher app
Software image flashing process
  • Boot WLAN Pi M4 from the micro SD card. Measure how long it takes to boot from plugging the Ethernet cable in (and PoE power provided) to WLAN Pi home screen shown on the display
WLAN Pi M4 powered via PoE

Results

Sandisk High Endurance 32 GB U3 card is the default provided with WLAN Pi M4 by default. The U3 standard reall y makes a huge difference when it comes to writing to the card and that’s why it is our go to option.

Micro SD cards tested

From practical perspective, different size or even slightly slower card won’t really make your Pi boot any faster. If you make some bad choices and reuse an older class 6 card, you will spend extra 11 seconds of your life waiting for the WLAN Pi to boot every single time.

Flash WLAN Pi imageEffective speedBoot WLAN Pi M4
Sandisk HE 32 GB U31 min 59 seconds64 MB/s28 seconds
Sandisk HE 256 GB U31 min 53 seconds68 MB/s28 seconds
Sandisk Ultra 32 GB U13 mins 54 seconds24 MB/s28 seconds
Samsung 8 GB Class 611 mins 29 seconds8 MB/s39 seconds
Compute Module 4 with built-in eMMC storageDidn’t testDidn’t test27 seconds

Recommendation

Invest in a U3 or better card and benefit from fast write speeds. There is very little premium to pay. In future, you can reuse a fast card in other device like a dash cam, Raspberry Pi 5 workstation, or video camera.

Kingston has a great blog post about SD card standards.

Apple iOS Shortcut: Remind me to charge my secondary iPhone

Let me give you one more reason why you should explore the Shortcuts framework on your iOS or macOS device.

Remind me to charge my test phone

I mainly use my primary iPhone, but for testing I use an older iPhone running iOS Beta. Up until now, I struggled to keep the test phone charged. Typically I would pull it out of the bag and … you know the rest of this story, right?

I put together this quick but very useful shortcut. Whenever charge level drops below 10 %, the secondary phone will automatically send me an iMessage with a reminder. That’s it. Simple. Useful.

Recharge reminder automatically sent to me via iMessage from the secondary device

How does it work

Simply create a new Shortcut on the secondary iOS device, using the Shortcuts app. Select Send Message action and enter your iMessage details.

Now, in the Automation section, configure the trigger that executes this action. Set it to run whenever battery level drops below 10 %.

Then hit Done.

Micro SD card adapter that travels inside your MacBook’s SD card reader

I flash Micro SD cards few times a day (hello WLAN Pi team 😉), and I thought it might be a good idea to always have an SD card to Micro SD card adapter on me. The easiest way to do that is to insert one in your MacBook built-in SD card reader slot. But which one do you buy?

Supplied adapter

There is nothing wrong with this SanDisk adapter. But it sticks out of your laptop. You can’t leave it inserted in the Mac while travelling. And also, the Micro SD card might slip out of the adapter.

White OEM Micro SD to SD card adapter

To my surprise, this £2.60 adapter worked great… for a couple of weeks 😅 Until it disintegrated. It was designed for previous generations of MacBooks and it is not flush with the body of M1 MacBook, but it is still smaller than the full-size adapter.

You can shave off the grey plastic part, and make it even smaller. The white part allows you to easily remove and reinsert the adapter. No nails required.

The Micro SD card goes in the adapter from the side, so it won’t eject in your backpack or laptop bag.

It flashes cards at the exact same speed 61.8 MB/s as the premium £30 BaseQi. And it is easy to remove from the MacBook card reader slot.

BaseQi 420A

This adapter is primarily designed for those who want to expand storage capacity of their MacBook. And it does that really well. It fits perfectly inside SD card reader slot of 14″ M1 2021 MacBook. The problem is that it works ‘too well’. Once you insert the Micro SD card to it, it is very hard to remove the Micro SD card. Now, when you insert it into MacBook SD card reader, it is designed to stay there and again it does that ‘really well’.

Removal of BaseQi from the MacBook card reader takes 2 fingers and 2 nails. Yes, it takes significant effort.

Would I recommend it to someone who wants to use it to flash Micro SD card few times a day? No. It takes a huge effort.

Afterplug Ultra Slim Stick On SD and MicroSD Card Holder with Reusable Adhesive

Problem solved! This stick on card holder did the trick. I can reuse all my SanDisk SD card to micro SD card adapters. And I can carry a handful of them, label them and store the micro SD cards inside the adapters.

Wi-Fi Vendor – Detect vendor of a Wi-Fi access point with just your iPhone or iPad

Many of us walk into buildings and we immediately start looking for access points 🙃 Often times, the access points are not visibly installed. But how can you tell what vendor is your favourite coffee shop using, or what APs did your customer deploy?

Now, would it be cool if you could use your iPhone or iPad to find out what vendor is your customer, public venue, favourite football club, or train provider using?

Wi-Fi Vendor iOS Shortcut

I created a Shortcut for iOS, which does exactly that.

Simply connect to a Wi-Fi network and open the shortcut. We will automatically populate the input field with the BSSID of the AP you are currently connected to:

Simply connect to a Wi-Fi network and tap on the Wi-Fi Vendor icon

If you don’t want to connect to an AP, use Airport Utility to get the BSSID (aka the “wireless MAC address” of the AP) of the access points around you, and let Wi-Fi Vendor shortcut do its magic:

Scan for BSSIDs around you and detect vendor

Or you can even use the good old Copy & Paste method. Let’s say you saved the OUI to your Notes app. Copy it to clipboard and paste into Wi-Fi Vendor:

Benefits of this solution

  • iPhone or iPad is all you need. No need to open your laptop or other professional Wi-Fi tool.
  • It is free, and driven by your coffee donations 😉☕️
  • All data stays on your iPhone and iPad. No data, not even the BSSID, is sent to a cloud service.
  • Our OUI <-> Vendor database is Wi-Fi centric, open to additions of the new records by Wi-Fi professionals, it has extra entries from vendor documentation, and BSSIDs captured in the field
  • It is community-driven and customisable. Contribute new OUIs, or fork our repository and create your own tool.
  • For Cisco Meraki APs, I use an active detection method – more about this below

Cisco Meraki active vendor detection method

When there is no match based on the access point’s OUI, Wi-Fi Vendor shortcut performs an active check. Make sure you are connected to the AP, then open Wi-Fi Vendor. It will attempt to browse to the Local Status Page of the AP and if it find Cisco Meraki logo in the source code, that’s a match.

Supported iOS releases

I’ve tested Wi-Fi Vendor on these devices. Use iOS 17 or newer for the best results and all features.

  • iPad Air 2, iOS 15.7.7 – no Cisco Meraki active check, doesn’t detect BSSID you are currently connected to
  • iPhone SE 2nd gen, iOS 16.6 – no Cisco Meraki active check, doesn’t detect BSSID you are currently connected to
  • iPhone SE 2nd generation, iOS 17.0 – all features are supported
  • iPhone SE 3rd generation, iOS 17.0 – all features are supported

Download and install Wi-Fi Vendor iOS Shortcut

It takes less than a minute to install.

Follow this video guide to 🔽 download the latest version from my GitHub to your iPhone or iPad.

Install Wi-Fi Vendor shortcut

The mandatory boring bit

This tool is provided as is. If you spot anything that needs to be fixed, let us know, or even better submit a Pull Request including the fix. Blame Jiri for anything that needs to be fixed, not Cisco 😉