This study examined how configurations of family, school, and peer risks were associated with problematic Internet use among Chinese boarding high school students. A total of 736 students (54.21% male; Mage = 16.78, SD = 0.99) from two public boarding high schools in Yingkou, Liaoning Province, China, were recruited through cluster convenience sampling during the spring semester of 2025. Latent profile analysis was used to identify patterns of family–school–peer risks, and subsequent analyses ex