Early on May 28, 2026, thousands of T-Mobile fiber customers woke to dead connections. No streaming. No video calls. No work from home. Reports flooded in. Downdetector tallied more than 850 complaints by 8 a.m. ET. The numbers later eased. Yet hundreds lingered. The disruption hit hardest along the East Coast. Customers who switched from legacy providers for faster speeds found themselves staring at blank screens. One former Lumos subscriber in North Carolina told others on X his service had performed well overall until that morning. His mobile line stayed up. The fiber did not. Android Authority tracked the pattern. Reports began near 1 a.m. ET. They peaked hours later before tapering. The heat map pointed clearly eastward. T-Mobile acquired Lumos Fiber in recent years to expand its fixed-line footprint. The move let the carrier bundle home broadband with its wireless plans in select markets. Those markets now felt the pain. In the Triad region of North Carolina, callers reached an automated message.…