An Xbox service outage spanning roughly 16 hours beginning late July 26 locked players out of both digital and physical disc-based games across Xbox 360, Xbox One, and Series X|S consoles, coinciding with the hours before the Halo: Campaign Evolved launch on July 28, 2026. The disruption hit sign-in, library enumeration, entitlement checks, and game launches, with Xbox support confirming problems even for disc titles and backward-compatible content. Service was restored around 2:30 PM PDT on July 27.

Xbox CTO Scott Van Vliet attributed the failure to a Microsoft licensing service outside the Xbox division that began failing overnight, cascading through dependencies shared with publishing partners and triggering widespread entitlement failures. The team isolated the issue, shifted traffic to working infrastructure, and conducted a full post-incident review focused on single points of failure and recovery speed rather than a one-line root cause.

This marks another data point in recurring platform instability, following a recent PSN outage, and highlights the practical limits of always-online authentication even for owned physical media. Van Vliet acknowledged the situation as unacceptable and committed to hardening dependencies and improving detection and communication moving forward.