HTTP 503 Error When Switching to a Different Microsoft Account on OneDrive

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HTTP 503 Error When Switching to a Different Microsoft Account on OneDrive

Carl Van Loo 0

When attempting to sign in to a secondary Microsoft account on OneDrive, I consistently receive an HTTP 503 (Service Unavailable) error. The issue persists after refreshing the page every subsequent sign-in attempt to OneDrive returns the same 503 error.

The only workarounds I have found are either opening a private/incognito browsing session or clearing all browsing data entirely, both of which are impractical for regular use.

This might be a session or cookie handling issue when switching between multiple Microsoft accounts in the same browser session.

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Answer 1

ppavle 5,195 Volunteer Moderator

I have separate profiles for every Microsoft account I use. It's easy and convenient and you are avoiding the problem you are describing.

Carl Van Loo 0 Reputation points

2026-05-12T09:18:07.8166667+00:00

Thanks for the tip! I can see how that works for some people, but maintaining separate browser profiles just for account switching feels like a heavy workaround for what should be a straightforward operation. I'd really hope this could be addressed on OneDrive's side so that switching accounts works smoothly in a single browser session.

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HTTP 503 Error When Switching to a Different Microsoft Account on OneDrive

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