Learner agency is a key factor in success with technology-infused Innovative Learning Environments (ILEs). Focussing on informal practices unrelated to the learning agenda (off-task practices) and considered undesirable by students (school--net-conflict), this paper explores how students who experience a school--net-conflict explain their off-task practices using four conceptions of agency as a theoretical framework. An analysis of interview data from focus groups with a purposive sample of Norwegian secondary students suggests the dominance of sovereign conceptions of agency, i.e., off-task practices understood as individual self-regulation failures. Other common explanations included (a) a drive-like 'pull' of social media (material conception), (b) peers' off-task practices as triggers (relational conception), and (c) adjustment to a grade- and test-oriented incentive regime (ecological conception). Findings also suggest a disconnect between students' explanations (situational nuance/detail) and attributions of 'blame' (dispositional default). Implications, limitations and further research are also considered.