During August 2025, Kaczmar2 developed a comprehensive troubleshooting guide for the pi-hole/docs repository, addressing the Unbound 'so-rcvbuf 1048576 was not granted' warning. The work focused on clear, actionable documentation, guiding users through diagnosing and resolving the issue by inspecting and adjusting the Linux kernel parameter net.core.rmem_max and restarting Unbound. Using Markdown for documentation and applying system administration expertise, Kaczmar2 ensured the guide included both temporary and permanent solutions, as well as traceability through linked commits. This contribution improved operator efficiency and system stability by providing repeatable steps that reduce support time and enhance overall documentation quality.