Office 365

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Office 365 is an online productivity suite that is developed by Microsoft. Office 365 contains online and offline versions of Microsoft Office, Skype and Onedrive, as well as online versions of Sharepoint, Exchange and Project.

Problems in the last 24 hours

The graph below depicts the number of Office 365 reports received over the last 24 hours by time of day. When the number of reports exceeds the baseline, represented by the red line, an outage is determined.

Office 365 Outage Chart 01/27/2026 23:50

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Most Reported Problems

The following are the most recent problems reported by Office 365 users through our website.

  1. Sign in (41%)

    Sign in (41%)

  2. Errors (33%)

    Errors (33%)

  3. Website Down (26%)

    Website Down (26%)

Live Outage Map

The most recent Office 365 outage reports came from the following cities:

Loading map, please wait...
City Problem Type Report Time
United StatesHurricane Website Down
GermanyHamburg Website Down
United KingdomBelfast Errors
FranceCharenton-le-Pont Errors
United StatesColorado Springs Sign in
CanadaBrampton Sign in
Map Full Outage Map

Community Discussion

Tips? Frustrations? Share them here. Useful comments include a description of the problem, city and postal code.

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Office 365 Issues Reports

Latest outage, problems and issue reports in social media:

  • kamkamkam5 PaulKamHumphreys (@kamkamkam5) reported

    @kaytayking Get office 365, you can put it on any 5 devices with the login (laptop, iPad etc)

  • journeymanped Journeyman Pedant (@journeymanped) reported

    @JamesBSumner you don't need them to know about it, just run it locally, and it works against the Office365 server. I can confirm this with many 1000;s of emails and calendar events over the last 6 or so years

  • EngLifestyles EngineeredLifestyles (@EngLifestyles) reported

    @Office365, @Office, why do I need to sign into my account every 15 minutes? It continues to tell me you’re having an issue with my account? #TechSupport #Office365

  • jayeshnavin Jayesh Navin Shah (@jayeshnavin) reported

    Now the UX bit. Seems like Microsoft recognised this problem and made several productivity improvements to Outlook on Office 365 last year to allow changing the default meeting time and to finish meetings earlier. Yay! Yay? 9/n

  • RyanAColbert Ryan Colbert (@RyanAColbert) reported

    @OfficeSupport Microsoft Office 365 ProPlus was working fine until automatically received the update from Version 2101 (Build 13628.20448) to Version 2102 (Build 13801.20266). Now (based on Microsoft forms) the following error is widespread OLicenseHeartbeat.exe crash

  • jenstirrup Jen Stirrup #Leadership #WomenInTech #Diversity (@jenstirrup) reported

    @SQLAllFather @MicrosoftTeams Yes, and if you have different Office365 logins (as I do) it writes a scrap to CredMon so next time you try to log in to Teams as someone else, you're in the loop of Teams login hell because you weren't properly closed out. 1/

  • MaidenWatford 🤘⸸ 𝕸𝖆𝖙 𝖙𝖍𝖊 𝕯𝖆𝖒𝖓𝖊𝖉 ⸸🤘 (@MaidenWatford) reported

    @dr_cheeky Someone stole my Office 365.I will hunt them down, they have my word...

  • hoyty Hoyty (@hoyty) reported from Sammamish, Washington

    @hacks4pancakes I totally agree and understand this as I have dealt with crappy devices like copiers bought 2 years ago that won’t talk to Office 365. However if you are truly only using it for SMTP relay then disable HTTPS inbound from Internet. If it isn’t a live mailbox server you don’t need.

  • theaishaejaz Aisha Ejaz (@theaishaejaz) reported

    Hi folks. Need your support team’s help in sorting out my login from GSuite (now Workspace) to Office365 plz. Could this be looked into urgently? Thanks a million. @Calendly

  • TellWouldn Tell (@TellWouldn) reported

    Outlook on the web (previously called Exchange Web Connect, Outlook Web Access, and Outlook Web App) is a web business version of Microsoft Outlook, and is included in Office 365, Exchange Server, and Exchange Online. Also known as OWA Is compromised. Defense Dept.,Think tanks.

  • drfyzziks Mike Kelly (@drfyzziks) reported

    @Microsoft365 I have an unusual Teams issue & need help, but none of the regular support options are open to me, so hoping you can advise: Basically, I had an old Office 365 small biz account that I canceled. However, the presence of that old subscription causes me problems 1/2

  • Brownques Brownques Marlee (@Brownques) reported

    @CNET If you go to school, chances are they already subscribed every student for Office 365. Just login with your school account!

  • RodneyFort Rodney Fort (@RodneyFort) reported

    @BMMillsy I had the same issue. If POT file was from an old version, the new Office365 version won’t save the audio (annotations either). Maybe true for video, too?

  • RickCarlsson Rickard Carlsson (@RickCarlsson) reported

    Office 2016 was bad but in Office 365 client the search is pretty much broken.

  • bschorr Ben M. Schorr (@bschorr) reported

    Back when I was a MSFT partner a firm with 100 users called me about upgrading their aging on-prem Exchange server. They were looking at ~$24K for hardware, software & deployment costs. I persuaded them to migrate to Exchange Online in Office 365. $400/mo. Much better solution.

  • happyxonigiri SARI *o(^^*)♪ (@happyxonigiri) reported

    17:09 I just finished fixing the error Office 365 encountered and I can ~~finally~~ start working 😭😭😭😭😭

  • ChrisBCutter Chris Barker 😷 (@ChrisBCutter) reported

    The problem was caused in the first place by us following instructions provided by @OfficeSupport @Office365, and the solution they provided only served to make the initial problem worse.

  • Hekbzz H (@Hekbzz) reported

    @Apple @Office365_Tech How do I fix my Outlook? IMac operating big sur, uninstalled and reinstalled Office 365. Outlook crashes, needs repairing, 196GB free space, says it can't repair because it needs 110GB. Created new profiles, nothing works. Do I give up?

  • kai_h Kai (@kai_h) reported

    @mvyrmnd Amen to that. Just migrated my last client still with an on prem Kerio server into office 365 last week

  • julian_west Julian West (@julian_west) reported

    @jsnover 80% of Office 365 cloud tenants are Hybrid: e.g. they must maintain a let least one Exchange CAS server for autodiscover record.

  • etresoft John Daniel (@etresoft) reported

    @nekr0z My early Dreamhost experience was much the same. I loved Dreamhost! I moved my mail to Office365 years ago. I finally dropped Dreamhost after dial-up server speeds. Now I use AWS Lightsail. I would rather not use AWS, but this is the closest thing there is to the old Dreamhost.

  • MajaJantje Maja Jantje (@MajaJantje) reported

    @Office365 Why does outlook does not start, and says error 0xc000005 on my 2015 laptop. While it is still working on the 2019 ipad? Have you done another update that disturbs my 6y old laptop?

  • getanas Anas Abdul Latheef (@getanas) reported

    @Microsoft @Office365 Rendering in Google Chrome. Can't we fix this?

  • vicsteroooo Vicsteroooo (@vicsteroooo) reported

    Up to here with Office 365. For goodness sake make it easier to log in & out of one work place & another. I don’t want to have to shut everything down just to access ruddy sharepoint at another institution.

  • jasonsamuels Jason Samuels (@jasonsamuels) reported

    The last on premise Exchange Server I was responsible for was an Exchange 2010 instance that I upgraded from 2003 and later moved the org off of and out to Office 365. There have been many days I was thankful to not have to administer that anymore, but none quite so much as today

  • tweet_alqamar al Qamar (Karl Wester-Ebbinghaus) Ⓥ (@tweet_alqamar) reported

    @BenDumke Uninstall the KMS Server delete the _vlmcs entr(y)ies in DNS. Use VAMT to double check compliance if all Win 10 machines are really using ADBA. Office 365 is freed from that.

  • lwolive Ross 3.5% (@lwolive) reported

    @VMware Office365 is down

  • TomaTantrum Toma Holder (@TomaTantrum) reported

    I don't know who at @Windows decided my login needed to be delayed by a screen about services I already rejected or installed. It was the wrong decision. I don't need reminders that Windows Hello & Office 365 exist.

  • vanderbeckinc VanDerbeckInc (@vanderbeckinc) reported

    @Office365 why after days and days of waiting for the Data Protection Team to assist with a locked out O365 tenant, do I NOT get a phone call and then an email showing that the problem was resolved/case closed when it has not been? This is the 2nd time!!

  • spdrsnc Jack Quaver (@spdrsnc) reported

    Office 365: Oh you want to change the language of my applications? No problem, let me take *A FEW HOURS* just to do that simple task #FFS