service health

Microsoft confirmed a regional outage that left Outlook and Exchange Online users in North America struggling with login failures, server-connection errors and delayed mail delivery, then rolled back changes and applied optimizations to restore service — while choosing not to publish full...

Microsoft Copilot experienced a measurable service disruption on September 8, 2025, with hundreds of user reports and outage-tracking spikes starting around 8:05 PM Eastern Time — community monitoring and real‑time trackers flagged the issue and users were advised to try alternate Copilot entry...

A sudden cluster of undersea fiber cuts in the Red Sea has forced Microsoft Azure and other cloud and carrier operators to reroute traffic, producing measurable latency and slower internet performance across parts of South Asia, the Gulf and beyond—an event that exposes how a handful of damaged...

Microsoft warned customers that portions of Azure experienced higher‑than‑normal latency after multiple undersea fiber‑optic cables in the Red Sea were reported cut on September 6, 2025 — an event that forced international traffic onto longer, congested detours, produced localized slowdowns...

Microsoft Azure users and large swathes of internet users across Asia, the Middle East and parts of Europe experienced measurable slowdowns and elevated latency after multiple undersea fibre‑optic cables in the Red Sea were cut on September 6, 2025, forcing cloud and carrier engineers to reroute...

Internet traffic between Asia, the Middle East and Europe slowed to a crawl this week after multiple subsea fibre-optic cables in the Red Sea were severed, triggering widespread service degradation across India, Pakistan, the United Arab Emirates and parts of the Middle East — and forcing major...

Microsoft confirmed that parts of its Azure cloud footprint experienced noticeable disruptions after multiple undersea fibre‑optic cables in the Red Sea were cut, forcing engineers to reroute traffic and apply emergency traffic‑engineering measures while carrier repairs were planned. Background...

Microsoft confirmed on September 6 that multiple undersea fibre‑optic cables in the Red Sea were cut, and warned Azure customers that traffic which “previously traversed through the Middle East” may experience increased latency as packets are rerouted across longer, often congested alternatives...

Microsoft’s Azure engineers told customers to expect higher latency after multiple international subsea cables in the Red Sea were cut, then updated their status to show no active Azure platform issues — a rapid swing that highlights both the resilience of modern cloud routing and the fragility...

Microsoft’s Azure cloud experienced measurable performance degradation after multiple undersea fiber‑optic cables in the Red Sea were cut, forcing traffic to detour around the damaged corridor and producing higher‑than‑normal latency for flows that traverse the Middle East between Asia and...

Microsoft Azure customers worldwide experienced elevated latency and intermittent slowdowns after multiple undersea fiber‑optic cables in the Red Sea were damaged, forcing traffic onto longer detours while Microsoft rerouted and rebalanced network flows and coordinated with carriers and cable...

Microsoft’s Azure customers woke up to a new, uncomfortable reminder that the cloud — no matter how abstract it feels — still rides on ships, splices and seabed geography after the company warned that multiple undersea fiber-optic cables in the Red Sea had been cut, forcing traffic onto longer...

Microsoft warned that parts of the Azure cloud were experiencing higher‑than‑normal latency after multiple undersea fiber‑optic cables in the Red Sea were cut, forcing traffic onto longer, more congested routes while carriers and Microsoft reroute and plan repairs. (reuters.com) Background /...

Microsoft Azure users experienced elevated latency and disrupted connections after multiple undersea fibre-optic cables in the Red Sea were cut on September 6, 2025, forcing cloud traffic to be rerouted through longer, more congested paths and exposing fragilities in the global internet backbone...

Microsoft has warned Azure customers they may see higher‑than‑normal latency and intermittent service degradation after multiple undersea fiber‑optic cables in the Red Sea were cut, forcing traffic onto longer detours while carriers and cloud operators reroute and prepare for repairs...

Microsoft's Azure cloud is reporting elevated latency and intermittent service slowdowns after a cluster of undersea fiber-optic cables in the Red Sea were cut, forcing traffic onto longer, higher-latency routes while repairs and rerouting continue. (reuters.com) Background The global internet...

Microsoft confirmed that parts of its Azure cloud network are seeing higher-than-normal latency after multiple undersea fiber-optic cables in the Red Sea were cut, forcing traffic onto longer detours while carriers and cloud operators reroute and prepare repair operations. Background The global...

Microsoft has warned that users of its Azure cloud may see higher-than-normal latency and intermittent disruptions after multiple undersea fiber-optic cables in the Red Sea were cut, forcing traffic onto longer alternate routes while repair work and global rerouting continue. (reuters.com)...

Microsoft has acknowledged and begun rolling out a fix for a troubling Exchange Online regression that left some Outlook mobile users unable to send or receive mail — a problem traced to Hybrid Modern Authentication (HMA) and tracked inside the Microsoft 365 Admin Center as incident EX1137017...

On July 29, 2025, a sudden capacity shortfall in Microsoft Azure’s East US region prevented many customers from creating or starting virtual machines — an event that exposed a blunt reality: public cloud elasticity has practical, physical limits, and “infinite” capacity is a marketing...