Outlook not loading

Question

For the past few days my emails are just not loading or taking a LONG time, sometimes 40 minutes to load. I've tried EVERYTHING, spoken to a support agent, chatted to another. Nothing is working. My WiFi has been tested. Everything else works except access to Outlook. I changed browsers. Nothing is working.

Needless to say, this is really impacting my capacity to work.

Outlook | Web | Outlook on the web for business | Email

Answer 1

Hi @B DG,

Thanks for sharing the details, and I’m really sorry to hear how much this has been impacting your ability to work. 

Have you had a chance to clear your browser's cache and cookies, and try disabling your extensions as Mohit Chander suggested previously? 

Additionally, have you tried using the Outlook desktop app to see if the delay happens there too, or is this slowness strictly isolated to the web version? 

I do have one final workaround that has helped others with severe loading times on the web. If you can manage to wait for the website to load one more time: 

1. Create a new folder and name it something like "Old Mail." 
2. Select all the emails currently sitting in your main Inbox and drag them into this new folder. 
3. Emptying the main Inbox removes the heavy load from that landing page, which often allows the web portal to load normally the next time you log in. 
4. Besides that, you can try disable all ad blockers / pop-up blockers / privacy extensions, especially AdBlock and uBlock, then refresh and retest.

Eventually, because you have tried different browsers and verified your WiFi, if the inbox workaround above does not resolve the loading times, this issue goes beyond what an end-user can fix. It is highly likely an issue on the server side with your specific mailbox. You may need to reach out to live support again and request an escalation to investigate the account backend. I would suggest creating a new ticket, as a fresh set of eyes might approach the investigation differently. 

Thank you for your time, and I sincerely hope the support team is able to get this permanently resolved for you soon. If you have any updates, please feel free to reply to me.

Answer 2

Hi @B DG,

Thanks for sharing the details, and I’m really sorry to hear how much this has been impacting your ability to work. To help narrow this down a bit further, could you please clarify a few points for me?

I noticed you posted a question with Outlook on the web for business channel tag. May I kindly reconfirm: Are you using a Microsoft 365 Business account (provided by your organization or school), or a Personal Microsoft account? 

Besides Outlook on the web, are you also using Outlook on the desktop app or on a mobile device, and if so, do you see the same behavior there as well? Additionally, have you had a chance to sign in to your account on a different computer to check whether the issue still occurs?

Have you already tried connecting through a different network, such as a mobile hotspot?

You mentioned that you’ve already spoken with a support agent and chatted with another. Just to confirm, have you already submitted a support ticket to Microsoft for this issue? If so, would you be willing to share the ticket number with us via private message so we can better understand what’s already been investigated? I’ve sent you a private message, and you can access it by clicking on the banner notification.

Once I have a bit more information, I’ll be in a better position to understand your situation, look into it more thoroughly and suggest the most appropriate next steps. If you have any updates or additional details to share, please feel free to reply to me. I’ll be more than happy to continue assisting you.

Thank you for your time, and I look forward to your reply.

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Answer 3

Since your internet and browser aren’t the issue, this is likely an Outlook-side problem. Try opening Outlook in an incognito window, clearing cache/cookies, and disabling extensions. If you're using the desktop version of Microsoft Outlook, create a new Outlook profile or repair the data file.

Check your mailbox size. If it’s too large, it can slow everything down.

It is most likely a corrupted cache/profile or mailbox sync issue.

see if you can reinstall the app, or try logging into Outlook on a different system.