office 365 down Microsoft logon and server connection issues hit hundreds office 365 is down with hundreds of users reporting logon and Microsoft server connection problems today office 365 down Update one some office 365 users have reported that the service is working again after a widespread outage hit the Microsoft software earlier today however the official office 365 Twitter account is yet to reveal whether the issues have been fixed or not still saying engineers are working to resolve the problem dot in a tweet to one user the office 365 account tweeted we're investigating reports of our dear customers having issues with logging into Microsoft account slash office 365 our network operations center engineers are currently working to resolve this more details will be provided shortly original office 365 is down and not working for hundreds of users that have reported loggin and server connection problems with the Microsoft software independent website down detector has registered a search of office 365 down reports today the office 365 down reports started emerging from users around 11 a.m. BST with the issues peaking at 1801 reported issues with the cloud software out of those affected down detector found 62% er were experiencing issues with loggin and 18% er were having server connection problems office 365 users have taken to Twitter today to report issues with the service one user tweeted Microsoft Office 365 services are globally down while another posted number office 365 looks down unable to login one added down down down down at office 365 and one wrote fantastic that office 365 seems to be down really lovely express dot co dot uk' has contacted Microsoft for comment and asked if they have an estimated time for when the office 365 issues will be resolved by however the official office 365 Status page has in the meantime confirmed that an authentication issue is preventing users from accessing the service dot they said we've determined that an authentication issue is preventing users from accessing the office 365 service this issue is limited to the AIPAC and EMEA regions and we're working to resolve it as the office 365 outage hit Outlook users also reported issues with the service with hundreds saying they were experiencing problems accessing the service dot while the office 365 status Twitter page added we're working to resolve an office 365 portal access issue admins can follow Emma one three three five one eight in the admin Center for further details and updates they later added we're analyzing diagnostic data to isolate the root cause of the office 365 portal access issue admins check Emma one three three five one eight for more details office 365 is the cloud-based version of Microsoft's hugely popular suite of apps it includes versions of Word Excel PowerPoint and OneNote it was first released back in 2010 with Google's cloud-based G suite it's big rival