{"id":19080,"date":"2026-10-20T05:01:47","date_gmt":"2026-10-19T20:01:47","guid":{"rendered":"https:\/\/m365jp.net\/?p=19080"},"modified":"2026-10-20T05:02:33","modified_gmt":"2026-10-19T20:02:33","slug":"investigating-mo1515549-microsoft-365-suite-users-and-admins-cant-view-or-manage-device-group-configurations-through-the-microsoft-defender-portal","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2026-10-20-investigating-mo1515549-microsoft-365-suite-users-and-admins-cant-view-or-manage-device-group-configurations-through-the-microsoft-defender-portal","title":{"rendered":"[investigating] MO1515549 | Microsoft 365 suite | Users and admins can’t view or manage device group configurations through the Microsoft Defender portal"},"content":{"rendered":"
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MO1515549 | Microsoft 365 suite | Users and admins can’t view or manage device group configurations through the Microsoft Defender portal<\/th>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n\n\n\n\n\n\n\n\n\n\n
Status<\/th>\ninvestigating<\/td>\n<\/tr>\n
Classification<\/th>\nadvisory<\/td>\n<\/tr>\n
User Impact<\/th>\nUsers and admins can’t view or manage device group configurations through the Microsoft Defender portal.<\/td>\n<\/tr>\n
Last Updated<\/th>\n10\/19\/2026 19:18:49<\/td>\n<\/tr>\n
Start Time<\/th>\n10\/19\/2026 18:35:18<\/td>\n<\/tr>\n
End Time<\/th>\n<\/td>\n<\/tr>\n
Latest Message<\/th>\nTitle: Users and admins can’t view or manage device group configurations through the Microsoft Defender portal <\/p>\n

User impact: Users and admins can’t view or manage device group configurations through the Microsoft Defender portal. <\/p>\n

More info: The device groups page in the Microsoft Defender portal isn’t loading for affected users and admins. Core security operations such as detection, alerting, and incident response aren’t affected. <\/p>\n

Current status: We’ve identified that an issue in the device groups page is causing a component in the page rendering process to fail to handle the response correctly and is resulting in the page to crash. We’re working on developing a solution that remediates the impact. <\/p>\n

Scope of impact: Users and admins attempting to view or manage device group configurations through the Microsoft Defender portal may be affected. This section may be updated as our investigation continues. <\/p>\n

Root cause: An issue in the device groups page is causing a component in the page rendering process to fail to handle the response correctly and is resulting in the page to crash. <\/p>\n

Next update by: Monday, October 19, 2026, at 9:00 PM UTC<\/td>\n<\/tr>\n

Machine Translation<\/th>\n\u30bf\u30a4\u30c8\u30eb:\u30e6\u30fc\u30b6\u30fc\u3084\u7ba1\u7406\u8005\u306fMicrosoft Defender\u30dd\u30fc\u30bf\u30eb\u3092\u901a\u3058\u3066\u30c7\u30d0\u30a4\u30b9\u30b0\u30eb\u30fc\u30d7\u8a2d\u5b9a\u3092\u95b2\u89a7\u307e\u305f\u306f\u7ba1\u7406\u3067\u304d\u307e\u305b\u3093 <\/p>\n

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