Can't login to Office365 with my student account - Endless login loop.

Question

Can't login to Office365 with my student account - Endless login loop.

Logen Henderson (s2255177) 0

Hiya, I just purchased a Mac laptop (2019 MacBook Pro) after my previous windows work station broke. I've been attempting to sort out my Office 365 resources for doing my work but any attempts to login via the website will trap my page in an endless loop of opening and closing the login portal.

As soon as I enter the 365 website, my browser will attempt to log me in although it appears to be both blocking the pop-up and failing to sign me in all at once. This is not an issue I encountered when logging into my teams account, which worked on the first try and has consistently signed me in automatically without issue since.

Any help would be appreciated.

Anonymous

2026-05-19T13:14:38.08+00:00
Hello Logen Henderson (s2255177)

Because this is a user‑to‑user forum, moderators don’t have access to any backend tools or your device to directly check what’s happening, so I may need to ask a few additional questions to better understand the behavior.

Could you please share the exact URL you’re trying to sign in to? Also, which browser are you using (Safari, Edge, Chrome, or Firefox)? Have you tried using an Incognito/Private window (Cmd + Shift + N) or a different browser to see if the issue persists there? If possible, I would recommend trying with Microsoft Edge since it is generally the most compatible browser for Microsoft 365 services and can help determine whether this is browser‑related.

In the meantime, please try the following:

Clear cookies and cache for Microsoft sites (especially microsoft.com, live.com, office.com)

Make sure your browser allows third‑party cookies and pop‑ups, as these are required for Microsoft 365 sign‑in

Double‑check that your Mac’s date and time are correct, since incorrect system time can affect authentication

Please give these steps a try and share any additional details or results you observe.

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.

Your answer

Anonymous

2026-05-19T13:14:38.08+00:00

Hello Logen Henderson (s2255177)

Because this is a user‑to‑user forum, moderators don’t have access to any backend tools or your device to directly check what’s happening, so I may need to ask a few additional questions to better understand the behavior.

Could you please share the exact URL you’re trying to sign in to? Also, which browser are you using (Safari, Edge, Chrome, or Firefox)? Have you tried using an Incognito/Private window (Cmd + Shift + N) or a different browser to see if the issue persists there? If possible, I would recommend trying with Microsoft Edge since it is generally the most compatible browser for Microsoft 365 services and can help determine whether this is browser‑related.

In the meantime, please try the following:

Clear cookies and cache for Microsoft sites (especially microsoft.com, live.com, office.com)

Make sure your browser allows third‑party cookies and pop‑ups, as these are required for Microsoft 365 sign‑in

Double‑check that your Mac’s date and time are correct, since incorrect system time can affect authentication

Please give these steps a try and share any additional details or results you observe.

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.