During August 2025, Kroos worked on the sonic-net/sonic-buildimage repository, focusing on improving network reliability by addressing a critical MTU configuration issue. He delivered a fix that increased the rx_buffer_size to 9238 in multiple platform configuration files, ensuring that MTU values exceeding 9100 no longer caused configuration-time errors. Kroos updated kernel module loading procedures to pass the new buffer size, reducing deployment failures and enhancing cross-platform consistency. His work involved advanced network and system configuration skills, utilizing Shell scripting to implement and document the changes. This targeted engineering effort improved deployment stability and traceability for large-scale network environments.