This study explores the classroom management challenges encountered by teachers in online classrooms compared to traditional classrooms. A qualitative case study approach was employed, whereby 97 teachers with experience of remote teaching were interviewed using semi-structured questions to identify and analyze the challenges encountered. The findings indicate that online classrooms present a number of challenges, primarily in the form of low student participation, a lack of interaction, technical issues such as internet connectivity and hardware deficiencies, and varying levels of technology literacy among teachers. However, traditional classrooms also present challenges, including discipline problems, overcrowding, and issues related to student motivation and readiness. The study revealed that effective classroom management in online classrooms is crucial for academic success and that teachers should receive continuous in-service training to enhance their technology literacy. Furthermore, improving technical infrastructure, such as internet speed and hardware quality, is recommended to support synchronous learning.