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I'm experiencing a very weird issue

Albert 0 Reputation points
2025-11-07T05:49:27.35+00:00

Basically, I can't access the Microsoft 365 site from my computer, not even via the browser.

This issue started out with the OneDrive app not wanting to sign me in, which led me to believe that OneDrive must momentarily be down. However, fast forward a week, and me asking colleagues if they can use OneDrive, and it seems to be fine for them.

I then thought it might be the OneDrive app's issue, so I tried to load OneDrive in my browser (Safari and Firefox), which constantly leads to a cannot load error as if the site is down.I can access the Office 365 home page, where I'm presented with the "sign in" option. However, when I click to sign in, I get the "cannot load page" error.

I've tested my login on my phone, and I can access my OneDrive from there, which leads me to believe that there is some issue with my computer and its communication/connection in relation to the Office 365 suite/products.

I've even tried booting up in a guest account to see if it might've been an issue related to my Computer's account, but that also led me to the "could not load" error. So this issue seems isolated to my computer.

Furthermore, I can load everything on the internet via the two above-mentioned browsers perfectly fine. There's no connectivity to the internet.

I don't even know where to start the diagnosis of this issue. Very weird to me. As if my computer is just refusing to communicate with Office 365.

I'm using a 2019 MacBook Pro.

Microsoft 365 and Office | OneDrive | For education | MacOS
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  1. Hani-Ng 5,790 Reputation points Microsoft External Staff Moderator
    2025-11-07T07:36:57.5566667+00:00

    Hi Albert

    Thank you for posting to Microsoft Q&A.

    Based on the issue you've described, it appears that your Mac may be experiencing a localized connectivity problem with Microsoft 365 services. Here are some recommended steps you can try:

    Use a Private Browsing Window

    Try accessing the site using an InPrivate/Incognito browser window. If successful, please clear your browser cache and attempt to sign in again.

    Test on a Different Network

    • If the phone that you can successfully log in with is using mobile network > please try connecting your Mac to this mobile hotpot to see if you are able to sign in while connected to the hotspot.
      • If it works when connected to the hotspot: this indicates that the issue lies with your home network. It’s likely due to a router setting such as parental controls, a security filter, or incorrect DNS configuration > First, try to restart your router. If that doesn’t help, try logging into the router’s admin panel to check for any blocklists or security features that might be interfering with Microsoft services.
      • If it still doesn’t work on the hotspot: Then the issue is almost certainly with your MacBook Pro itself. While this is less likely given the results from testing a guest account, it’s still possible. This could point to a deeper system-level issue, such as a corrupted network stack or a system-wide security policy.
    • In case both your Mac and your phone are using the same Wi-Fi and only the Mac is affected, please try connecting the Mac to a different network to rule out device-specific restrictions.

    Direct Access to Microsoft 365 Services

    You can try navigating directly to some Microsoft 365 Services to check if they load and login normally here:

    https://www.office.com

    https://excel.cloud.microsoft/

    If the issue continues after completing these steps, please let us know the results so we can assist you further.

    If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".

    Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

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