![]() Azure portal > Azure AD > Properties > Manage security defaults Office 365 admin center > Settings > Org Settings > modern authentication Modern authentication is enabled by default for every new Office 365 tenants, so please be aware if your environment has legacy windows client running or legacy office applications, do consider to turn them off first before proceeding to deploy Microsoft 365 apps. After 10 to 15 mins, the intermittent connections no longer shows up on the Wireshark. After quick research, I came about modern authentication could be the caused, and there where I had an idea on suggesting to turn off the security default in Azure portal and then turn off the modern authentication in Office 3655 tenant. Next, we suspected something go to do with compatibility on windows with/or office apps version. Solutions is dependent with what caused the issue.Īt first we suspected something got to do whitelisting on the network layer but we had confirmed that the whitelisting are correctly configured. This is definitely not the right solution. ![]() We ran a re-creation of the outlook profile and the prompt for credential has stops. We notice intermittent connections while running the Wireshark on Windows 7 with M365 business apps, while trying to login using the migrated account credential on an Outlook app. Microsoft 365 license: Business standard/basicĪs we all know that the major pre-requisites must met before starting the hybrid and perform migration.Migration method: Remote move migration.Office applications: Combination of 2013, 2016, 2019 and Microsoft 365 apps for business in both windows 7 and windows 10 categories. ![]() Windows client: Combination of Windows 7 and Windows 10.Exchange server: 1 unit, version 2013, CU23 (latest).This environment has the following items, ![]() The issue also do happen to Windows 10 machines but not as aggressive as the Windows 7 machines. This issue is where the legacy windows client or legacy office apps has issue with their outlook applications keeps prompting for credentials and showing disconnection. Today’s topic is about exchange migration of mailboxes from on-premises to Office 365. Hi guys and girls, hope you are doing well, as the pandemic is still on-going, hope that you guys are keeping cleanliness and safety first. ![]()
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