{"id":18826,"date":"2026-10-08T05:01:29","date_gmt":"2026-10-07T20:01:29","guid":{"rendered":"https:\/\/m365jp.net\/?p=18826"},"modified":"2026-10-08T05:02:09","modified_gmt":"2026-10-07T20:02:09","slug":"servicerestored-pl1490629-planner-some-users-may-see-initial-page-loading-failures-and-500-errors-within-microsoft-planner","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2026-10-08-servicerestored-pl1490629-planner-some-users-may-see-initial-page-loading-failures-and-500-errors-within-microsoft-planner","title":{"rendered":"[serviceRestored] PL1490629 | Planner | Some users may see initial page loading failures and 500 errors within Microsoft Planner"},"content":{"rendered":"
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PL1490629 | Planner | Some users may see initial page loading failures and 500 errors within Microsoft Planner<\/th>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n\n\n\n\n\n\n\n\n\n\n
Status<\/th>\nserviceRestored<\/td>\n<\/tr>\n
Classification<\/th>\nadvisory<\/td>\n<\/tr>\n
User Impact<\/th>\nUsers may have seen initial page loading failures and 500 errors within Planner.<\/td>\n<\/tr>\n
Last Updated<\/th>\n10\/07\/2026 19:46:09<\/td>\n<\/tr>\n
Start Time<\/th>\n09\/28\/2026 11:00:00<\/td>\n<\/tr>\n
End Time<\/th>\n10\/07\/2026 18:04:00<\/td>\n<\/tr>\n
Latest Message<\/th>\nTitle: Some users may see initial page loading failures and 500 errors within Microsoft Planner<\/p>\n

User impact: Users may have seen initial page loading failures and 500 errors within Microsoft Planner.<\/p>\n

Final status: We’ve isolated a subset of Microsoft Planner service infrastructure that dropped below our manageable service performance thresholds due to a networking issue, resulting in impact. After rerouting service traffic to alternate available infrastructure, our telemetry has verified that the impact has been remediated. <\/p>\n

Scope of impact: This issue could have caused any user to see initial page loading failures or 500 errors within Planner. <\/p>\n

Start time: Monday, September 28, 2026, at 11:00 AM UTC<\/p>\n

End time: Wednesday, October 7, 2026, at 6:04 PM UTC<\/p>\n

Root cause: A subset of Microsoft Planner service infrastructure experienced a networking issue that produced initial page failures and 500 errors within Planner. <\/p>\n

Next steps:
– We’re further analyzing the source of the networking issue that led to the affected service infrastructure\u2019s lower-than expected performance levels to help us prevent similar issues in the future. <\/p>\n

This is the final update for the event.<\/td>\n<\/tr>\n

Machine Translation<\/th>\n\u30bf\u30a4\u30c8\u30eb:\u4e00\u90e8\u306e\u30e6\u30fc\u30b6\u30fc\u306fMicrosoft Planner\u5185\u3067\u521d\u671f\u30da\u30fc\u30b8\u8aad\u307f\u8fbc\u307f\u306e\u5931\u6557\u3084500\u4ef6\u306e\u30a8\u30e9\u30fc\u3092\u76ee\u306b\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059<\/p>\n

\u30e6\u30fc\u30b6\u30fc\u3078\u306e\u5f71\u97ff:Microsoft Planner\u5185\u3067\u521d\u671f\u30da\u30fc\u30b8\u8aad\u307f\u8fbc\u307f\u306e\u5931\u6557\u3084500\u4ef6\u306e\u30a8\u30e9\u30fc\u3092\u7d4c\u9a13\u3057\u305f\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u6700\u7d42\u72b6\u6cc1:\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u554f\u984c\u306b\u3088\u308a\u3001\u7ba1\u7406\u53ef\u80fd\u306a\u30b5\u30fc\u30d3\u30b9\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u95be\u5024\u3092\u4e0b\u56de\u308a\u3001\u5f71\u97ff\u304c\u51fa\u305fMicrosoft Planner\u30b5\u30fc\u30d3\u30b9\u30a4\u30f3\u30d5\u30e9\u306e\u4e00\u90e8\u3092\u7279\u5b9a\u3057\u307e\u3057\u305f\u3002\u30b5\u30fc\u30d3\u30b9\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u4ee3\u66ff\u30a4\u30f3\u30d5\u30e9\u306b\u8fc2\u56de\u3057\u305f\u5f8c\u3001\u30c6\u30ec\u30e1\u30c8\u30ea\u3067\u5f71\u97ff\u304c\u6539\u5584\u3055\u308c\u305f\u3053\u3068\u304c\u78ba\u8a8d\u3055\u308c\u307e\u3057\u305f\u3002 <\/p>\n

\u5f71\u97ff\u7bc4\u56f2:\u3053\u306e\u554f\u984c\u306f\u3001\u3069\u306e\u30e6\u30fc\u30b6\u30fc\u3067\u3082\u521d\u671f\u30da\u30fc\u30b8\u8aad\u307f\u8fbc\u307f\u306e\u5931\u6557\u3084Planner\u5185\u3067500\u4ef6\u306e\u30a8\u30e9\u30fc\u3092\u76ee\u306b\u3059\u308b\u539f\u56e0\u3068\u306a\u308a\u5f97\u307e\u3059\u3002 <\/p>\n

\u958b\u59cb\u6642\u9593:2026\u5e749\u670828\u65e5(\u6708)\u5348\u524d11\u6642(UTC)<\/p>\n

\u7d42\u4e86\u6642\u523b:2026\u5e7410\u67087\u65e5\u6c34\u66dc\u65e5 \u5348\u5f8c6\u664204\u5206 UTC<\/p>\n

\u6839\u672c\u539f\u56e0:Microsoft Planner\u306e\u30b5\u30fc\u30d3\u30b9\u30a4\u30f3\u30d5\u30e9\u306e\u4e00\u90e8\u304c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u554f\u984c\u3092\u8d77\u3053\u3057\u3001\u521d\u671f\u30da\u30fc\u30b8\u5931\u6557\u3068Planner\u5185\u3067500\u4ef6\u306e\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u307e\u3057\u305f\u3002 <\/p>\n

\u6b21\u306e\u30b9\u30c6\u30c3\u30d7:
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\u3053\u308c\u304c\u30a4\u30d9\u30f3\u30c8\u306e\u6700\u7d42\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3067\u3059\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"

PL1490629 | Planner | Some users may see initial page loading failures and 500 errors within Microsoft Planner […]<\/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-18826","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/18826","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=18826"}],"version-history":[{"count":0,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/18826\/revisions"}],"wp:attachment":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/media?parent=18826"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/categories?post=18826"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/tags?post=18826"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}