Microsoft Learn Labs are permanently stuck on "Loading lab..." across multiple browsers, networks, and Microsoft accounts – Possible backend provisioning/API issue

Question

Microsoft Learn Labs are permanently stuck on "Loading lab..." across multiple browsers, networks, and Microsoft accounts – Possible backend provisioning/API issue

Abdul Rehman 95

Hello Microsoft Learn Support Team,

I am creating this new question because the issue is still unresolved after performing every troubleshooting step that was previously recommended.

First of all, thank you to @Yehor Diriavka and @Chirag Kolte for taking the time to review my previous question and suggesting troubleshooting steps. I carefully followed all of the recommendations, but unfortunately the problem still persists exactly the same.

Problem Description

Whenever I launch any Microsoft Learn lab, the lab never starts successfully.

Instead, it remains on the "Loading lab..." screen indefinitely.

The virtual machine is never provisioned, and the lab environment never becomes available.

This is happening with every Microsoft Learn lab, not just a specific module.

Because of this issue, I am unable to complete the hands-on exercises for my Microsoft Learn training.

Browser Console Errors

While the lab is stuck loading, I opened the browser Developer Tools (F12) and consistently observed errors similar to:

API consumer not enabled
ArkoseLabs postMessage target origin mismatch

The "API consumer not enabled" message appears repeatedly while the lab is attempting to load.

Since this occurs every time, I suspect the lab provisioning request is failing before the virtual machine is created.

Troubleshooting Already Performed

To make sure the problem was not caused by my own computer or browser, I tested extensively.

Browsers Tested

Google Chrome (Latest Version)
Microsoft Edge
Incognito Mode
InPrivate Mode

The issue occurs in every browser.

Browser Cache

I completely cleared:

Cache
Cookies
Site Data

No improvement.

Networks Tested

I tested using multiple internet connections.

Home Internet
Mobile Hotspot

The exact same issue occurs on both.

Microsoft Accounts Tested

To rule out an account-specific problem, I also tested with multiple Microsoft accounts.

My original Microsoft account
A completely different Microsoft account

Both accounts experience exactly the same issue.

Different Learn Labs

I also tried launching multiple Microsoft Learn labs.

Every lab remains stuck on:

Loading lab...

Therefore, the issue is not limited to one particular course or lab.

System Information

Operating System:

Windows 10

Browsers:

Google Chrome (Latest)

Microsoft Edge (Latest)

Country:

Pakistan

Microsoft Learn Profile:

https://learn.microsoft.com/en-us/users/abdulrehman-6385/

My Analysis

Since the issue occurs:

across multiple browsers,
across multiple Microsoft accounts,
across multiple internet connections,
across different Microsoft Learn labs,

I no longer believe this is caused by:

browser cache,
cookies,
extensions,
local network,
my computer,
or my Microsoft account.

The repeated "API consumer not enabled" error makes me suspect there may be a backend provisioning issue, an API configuration issue, or a Microsoft Learn Lab service issue preventing the lab environment from being created successfully.

The ArkoseLabs message may simply be a secondary warning, but the API-related error appears much more significant.

Request

Could someone from the Microsoft Learn engineering team please investigate whether:

there is a provisioning issue affecting my Learn profile,
there is an issue with the Learn Lab backend service,
there is an API configuration problem,
or whether there is a known service outage affecting lab provisioning?

If additional information is required, I will gladly provide:

HAR file
Browser console logs
Correlation ID (if available)
Screenshots
Any additional diagnostic information

Additional Information

Because I am currently preparing for the Microsoft PL-300 certification, I have continued practicing using the official GitHub lab files in Power BI Desktop.

However, I am still unable to access the Microsoft Learn hosted lab environment, so I would greatly appreciate any assistance in resolving this issue.

Thank you very much for your time and support. I look forward to your guidance.

Pandiripalli, Sriram 35 Reputation points

2026-07-28T14:34:09.89+00:00

Same for me. Let me know how to resolve the issue. No response from the Support
jordan hardnett 35 Reputation points

2026-07-29T13:36:27.6933333+00:00

I am currently experiencing the same frustration due to this issue as we speak. Absolutely needs to be addressed as soon as possible.
Roman Kozlov 0 Reputation points

2026-08-04T12:39:30.6433333+00:00

Same here, tested several browsers and accounts

Answer recommended by moderator

Nathan Roberts (SN) 13,351 Student Ambassador Volunteer Moderator

Hey there, Abdul Rehman & all

I have asked about this, and have a response from our community manager. I have been told that this would fall under credential support here: https://aka.ms/Credentials-Support

You can find support options under the Microsoft applied skills credentials and assessment labs here: https://learn.microsoft.com/en-us/credentials/support/help

You can also report feedback directly through the module, by clicking onto report an issue, which I know you have done. However, this is the only way to report feedback by that team without going to credential support.

I would recommend opening a support request through that team and see if they are able to help.

Hope this helps,
Nathan

0 comments

2 additional answers

Your answer

Pandiripalli, Sriram 35 Reputation points

2026-07-28T14:34:09.89+00:00

Same for me. Let me know how to resolve the issue. No response from the Support
jordan hardnett 35 Reputation points

2026-07-29T13:36:27.6933333+00:00

I am currently experiencing the same frustration due to this issue as we speak. Absolutely needs to be addressed as soon as possible.
Roman Kozlov 0 Reputation points

2026-08-04T12:39:30.6433333+00:00

Same here, tested several browsers and accounts

Answer 1

Nathan Roberts (SN) 13,351 Student Ambassador Volunteer Moderator

Hey there, Abdul Rehman

I am creating this new question because the issue is still unresolved after performing every troubleshooting step that was previously recommended.

Please can we stick to one thread on the Q&A community. I know you said that the solutions haven't helped, but it allows everything to be in one place. This helps the community to be able to help you effectively as they can see what has already been suggested without having to flick between threads. Your other threads are here:

When reading one of your questions, it has allowed me to answer one of my questions I was going to ask you, which was what module are you having problems with. You have stated in the first post it is this module: https://learn.microsoft.com/en-us/training/modules/power-bi-effective-reports/9-lab?source=learn

I am going to mark your other questions as duplicate, pointing them to this thread. I also tried launching multiple Microsoft Learn labs.

Every lab remains stuck on:

Loading lab...

Therefore, the issue is not limited to one particular course or lab.

When loading up that training module, I see the same problem with my account.

User's image

Please can you provide feedback to the Learn module team by reporting feedback here: reporting an issue

Please scroll down to the section with a heading "Report feedback"

This will allow you to submit feedback to the module team who can review the feedback and act on it.

In the meantime, please continue to use the learning lab on GitHub for the PowerBI desktop.

Hope this helps,
Nathan

Abdul Rehman 95 Reputation points

2026-07-24T11:56:47.11+00:00

Thank you for confirming that you are also able to reproduce the issue on your account. That helps confirm it is not isolated to my environment.

I will submit feedback using the "Report feedback" option as suggested.

Thank you for consolidating the threads and for your assistance. I appreciate your help, and I hope the Learn module team can investigate the lab provisioning issue.
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Nathan Roberts (SN) 13,351 Reputation points Student Ambassador Volunteer Moderator

2026-07-24T13:10:18.5033333+00:00

Hey there, Abdul Rehman

You're welcome, glad I could help in some way. I am going to raise the question around sandboxes on Microsoft learn modules.

Thanks,
Nathan
Danielle Smith 0 Reputation points

2026-07-24T14:18:22.8033333+00:00

Thank you both. I have already reported this 2 days ago via the link provided by Nathan but no sign of resolving. @Nathan Roberts (SN) - is there a way to find out when this will be resolved?
Nathan Roberts (SN) 13,351 Reputation points Student Ambassador Volunteer Moderator

2026-07-24T15:10:12.54+00:00

Hey there, Danielle Smith & Abdul Rehman

is there a way to find out when this will be resolved?

The only way of knowing if this is resolved is if the environment starts working as expected. The feedback form only allows you to report feedback, it doesn't allow Microsoft to contact you back.

Hope this helps,
Nathan
florencegaly-0145 5 Reputation points

2026-07-25T08:22:20.8933333+00:00

Hello, I am preparing the same certification PL-300, and observing the same things.
For info, I could do a lab last week (the first lab of the course). But this week, none :-(
If this can help...
Abdul Rehman 95 Reputation points

2026-07-25T15:10:12.7033333+00:00

Hi @florencegaly-0145 , @Nathan Roberts (SN) & @Danielle Smith

Thank you for the update.

I have now confirmed that this issue is still occurring. Another learner (Florence) has also reported that the PL-300 labs worked last week but none of them are loading this week.

Since multiple users are experiencing the same problem, could you please escalate this issue to the Microsoft Learn Labs team or let us know if there are any updates?

I appreciate your help and will continue using the GitHub Power BI labs while waiting for the environment to be fixed.
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Abdul Rehman 95 Reputation points

2026-07-25T20:17:20.6033333+00:00

Hello @Danielle Smith , @florencegaly-0145 & @Nathan Roberts (SN)

I wanted to provide an update regarding this issue.

I contacted Microsoft Support multiple times. They created Case #7106310527, but they confirmed that Microsoft Learn Labs issues are outside the scope of Office/Windows Support.

They also confirmed that for users with personal Microsoft accounts, there is no separate Microsoft Learn support portal, and that Microsoft Learn Q&A is the official support channel for Microsoft Learn Labs issues.

The problem still persists. All PL-300 Microsoft Learn Labs remain stuck on "Loading lab", and I am unable to start any lab.

Since you were able to reproduce the issue earlier, could you please let us know if there are any updates from the Microsoft Learn Labs engineering team or whether the issue has been escalated?

Thank you very much for your assistance.
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Syed Junaid Sher 10 Reputation points

2026-07-26T11:36:07.12+00:00

The same issue is present for me as well @Nathan Roberts (SN) , i am also from Pakistan and whenever i am trying to launch the lab regardless of the browser/account or module. The issue is the same, i am preparing for the PL300 and due to this technical issue which i believe is from microsoft's end i am unable to continue learning.

Your response is greatly appreciated

Regards
Danielle Smith 0 Reputation points

2026-07-27T12:43:38.5+00:00

I have reported the issue once more today via the Report an Issue page. This issue still persists as of today.
Abdul Rehman 95 Reputation points

2026-07-27T16:00:35.89+00:00

Hello @Nathan Roberts (SN), @Danielle Smith, and Microsoft Learn Team,

I wanted to follow up regarding this issue, as it still appears to be unresolved. Multiple users, including myself, have confirmed that all Microsoft Learn PL-300 labs remain stuck on "Loading lab...", regardless of browser, network, or Microsoft account. Since this issue has been reproduced by other learners and a moderator, it appears to be a backend service problem rather than an environment-specific issue.

Could you please let us know if there are any updates from the Microsoft Learn Labs engineering team or an estimated timeline for a fix? I appreciate your assistance and look forward to any update.

Thank you.
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Nathan Roberts (SN) 13,351 Reputation points Student Ambassador Volunteer Moderator

2026-07-28T08:19:21.8+00:00

Hey there, Abdul Rehman

I haven't received anything yet. However, I am asking someone else about this. Please note that I don't have direct access to the engineering team for the Learn site, so instead I am reporting this to our community manager.

I will let you know if I hear anything back.

Thanks,
Nathan
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Jaden Dyck 0 Reputation points

2026-07-30T19:36:54.4633333+00:00

@Nathan Roberts (SN) It still does not work, its a Microsoft problem. Many people are experiencing issues
Alex Baker 5 Reputation points

2026-07-31T04:26:26.7533333+00:00

When is this going to be resolved? I urgently need to use Microsoft Learn and nothing is being done?
Салима Кувандыкова 65 Reputation points

2026-08-01T09:03:35.7666667+00:00
Hello Microsoft Support,

I am experiencing an issue with one of the Microsoft Learn labs.

The lab does not load and remains on the loading screen indefinitely. I have already tried the following troubleshooting steps:

Cleared my browser cache and cookies.

Opened the lab in Incognito/Private mode.

Tried different browsers.

Verified that my internet connection is stable.

Waited and tried again later.

Unfortunately, the problem still persists.

Could you please investigate this issue and help me resolve it? If necessary, I can provide the lab name, module name, screenshots, and my Microsoft Learn account information.

Thank you for your assistance.

Best regards, Salima

Answer 2

Since the issue persists across browsers, private modes, networks, accounts, and multiple labs, the next supported step is escalation rather than more local troubleshooting.

For Microsoft Learn lab and Azure Lab Services issues, collect the following and include it in a support request:

Lab plan ID
In the Azure portal, select the lab plan and open Properties.
Lab ID
In the Azure portal, select the lab and open Properties. Alternatively, use the lab URL from the Azure Lab Services website.
Approximate time the issue occurred
Errors from the Azure activity log
In the Azure portal, open the lab plan or lab, then go to Activity log.

If available, also attach the browser console logs, HAR file, screenshots, and any correlation details, since the problem appears consistent and reproducible.

A few supported checks remain relevant:

If the lab uses Cloud Shell, enable third-party cookies in the browser. Microsoft Learn lists blocked third-party cookies as a cause of Cloud Shell startup failures.
If the issue is tied to remote access to a lab VM, verify that outbound RDP/SSH traffic is not being blocked by the local firewall, router, or network. Azure Lab Services notes that firewalls and some routers can restrict ports 3389/22.
If the lab VM was modified by an administrator or student, a reimage can return it to a known-good state. Warning: reimaging deletes all user data on the VM. To avoid data loss, store user data outside the lab VM, such as with OneDrive.

If the issue is specifically a Microsoft Learn training lab rather than a directly managed Azure Lab Services lab, the documented Learn-side actions are limited to browser/session troubleshooting such as private browsing, clearing cache/cookies, and enabling third-party cookies for Cloud Shell. Since those have already been exhausted, escalation is the documented path.