{"id":14369,"date":"2025-12-18T12:01:15","date_gmt":"2025-12-18T03:01:15","guid":{"rendered":"https:\/\/m365jp.net\/?p=14369"},"modified":"2025-12-18T12:06:08","modified_gmt":"2025-12-18T03:06:08","slug":"servicedegradation-mo1198797-microsoft-365-suite-users-in-japan-and-china-are-experiencing-access-and-sign-in-issues-with-microsoft-365-and-microsoft-copilot-2","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2025-12-18-servicedegradation-mo1198797-microsoft-365-suite-users-in-japan-and-china-are-experiencing-access-and-sign-in-issues-with-microsoft-365-and-microsoft-copilot-2","title":{"rendered":"[serviceDegradation] MO1198797 | Microsoft 365 suite | Users in Japan and China are experiencing access and sign\u2011in issues with Microsoft 365 and Microsoft Copilot"},"content":{"rendered":"
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MO1198797 | Microsoft 365 suite | Users in Japan and China are experiencing access and sign\u2011in issues with Microsoft 365 and Microsoft Copilot<\/th>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n\n\n\n\n\n\n\n\n\n\n
Status<\/th>\nserviceDegradation<\/td>\n<\/tr>\n
Classification<\/th>\nincident<\/td>\n<\/tr>\n
User Impact<\/th>\nUsers in Japan and China are experiencing access and sign\u2011in issues with Microsoft 365 and Microsoft Copilot.<\/td>\n<\/tr>\n
Last Updated<\/th>\n12\/18\/2025 02:53:23<\/td>\n<\/tr>\n
Start Time<\/th>\n12\/18\/2025 00:00:00<\/td>\n<\/tr>\n
End Time<\/th>\n<\/td>\n<\/tr>\n
Latest Message<\/th>\nTitle: Users in Japan and China are experiencing access and sign\u2011in issues with Microsoft 365 and Microsoft Copilot<\/p>\n

User impact: Users in Japan and China are experiencing access and sign\u2011in issues with Microsoft 365 and Microsoft Copilot.<\/p>\n

Current status: The service health remains stable and users should now be experiencing improved access to Microsoft 365 and Copilot services. We’re continuing to monitor for an extended period to ensure complete service recovery. <\/p>\n

Scope of impact: Your organization may be affected by this event, and some users in Japan, China, and Malaysia who are attempting to access Microsoft 365 services including Copilot may be impacted. This information may be updated as our investigation continues.<\/p>\n

Start time: Thursday, December 18, 2025, at 12:00 AM UTC<\/p>\n

Preliminary root cause: A traffic routing issue caused infrastructure in Japan to become unhealthy, which ultimately blocked users from successfully connecting to Microsoft 365 and Copilot services.<\/p>\n

Next update by: Thursday, December 18, 2025, at 4:00 AM UTC<\/td>\n<\/tr>\n

Machine Translation<\/th>\n\u30bf\u30a4\u30c8\u30eb:\u65e5\u672c\u3068\u4e2d\u56fd\u306e\u30e6\u30fc\u30b6\u30fc\u304cMicrosoft 365\u304a\u3088\u3073Microsoft Copilot\u306e\u30a2\u30af\u30bb\u30b9\u304a\u3088\u3073\u30b5\u30a4\u30f3\u30a4\u30f3\u554f\u984c\u306b\u76f4\u9762\u3057\u3066\u3044\u307e\u3059<\/p>\n

\u30e6\u30fc\u30b6\u30fc\u3078\u306e\u5f71\u97ff:\u65e5\u672c\u3068\u4e2d\u56fd\u306e\u30e6\u30fc\u30b6\u30fc\u306fMicrosoft 365\u304a\u3088\u3073Microsoft Copilot\u306e\u30a2\u30af\u30bb\u30b9\u3084\u30b5\u30a4\u30f3\u30a4\u30f3\u306e\u554f\u984c\u306b\u76f4\u9762\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u73fe\u72b6:\u30b5\u30fc\u30d3\u30b9\u306e\u5065\u5eb7\u72b6\u614b\u306f\u5b89\u5b9a\u3057\u3066\u304a\u308a\u3001\u30e6\u30fc\u30b6\u30fc\u306fMicrosoft 365\u304a\u3088\u3073Copilot\u30b5\u30fc\u30d3\u30b9\u3078\u306e\u30a2\u30af\u30bb\u30b9\u304c\u5411\u4e0a\u3057\u3066\u3044\u308b\u306f\u305a\u3067\u3059\u3002\u5b8c\u5168\u306a\u30b5\u30fc\u30d3\u30b9\u5fa9\u65e7\u3092\u78ba\u4fdd\u3059\u308b\u305f\u3081\u3001\u9577\u671f\u9593\u306b\u308f\u305f\u3063\u3066\u76e3\u8996\u3092\u7d9a\u3051\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u5f71\u97ff\u7bc4\u56f2:\u8cb4\u7d44\u7e54\u306f\u3053\u306e\u30a4\u30d9\u30f3\u30c8\u306e\u5f71\u97ff\u3092\u53d7\u3051\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u3001\u65e5\u672c\u3001\u4e2d\u56fd\u3001\u30de\u30ec\u30fc\u30b7\u30a2\u3067Copilot\u3092\u542b\u3080Microsoft 365\u30b5\u30fc\u30d3\u30b9\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3088\u3046\u3068\u3059\u308b\u4e00\u90e8\u306e\u30e6\u30fc\u30b6\u30fc\u3082\u5f71\u97ff\u3092\u53d7\u3051\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u60c5\u5831\u306f\u8abf\u67fb\u304c\u9032\u3080\u306b\u3064\u308c\u3066\u66f4\u65b0\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u958b\u59cb\u6642\u9593:2025\u5e7412\u670818\u65e5\u6728\u66dc\u65e5 0:00 UTC<\/p>\n

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\u6b21\u56de\u66f4\u65b0:2025\u5e7412\u670818\u65e5\u6728\u66dc\u65e5 \u5348\u524d4:00 UTC<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

MO1198797 | Microsoft 365 suite | Users in Japan and China are experiencing access and sign\u2011in issues with Mic […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-14369","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/14369","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/comments?post=14369"}],"version-history":[{"count":0,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/14369\/revisions"}],"wp:attachment":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/media?parent=14369"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/categories?post=14369"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/tags?post=14369"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}