Networking on Chengyu Wanghttps://chengyu.eu/tags/networking/Recent content in Networking on Chengyu WangHugo -- gohugo.ioen© 2026 ChengyuThu, 05 Feb 2026 11:00:06 +0000Tech Log: Chasing Down a Hijacked LAN Route on macOShttps://chengyu.eu/posts/macos-lan-route-hijack-fix/Thu, 05 Feb 2026 11:00:06 +0000https://chengyu.eu/posts/macos-lan-route-hijack-fix/A NAS on 192.168.5.x went unreachable with ‘No route to host’ — the culprit was a leftover feth interface from an ad-blocker’s content-filter extension that never fully uninstalled.Swapping My Parents' ISP Router for a Spare Xiaomi Router (an AP-to-Router-Mode Story)https://chengyu.eu/posts/xiaomi-router-ap-to-router-mode/Wed, 11 Jun 2025 11:00:20 +0000https://chengyu.eu/posts/xiaomi-router-ap-to-router-mode/A router that stubbornly stayed in AP mode after being moved, and the DHCP debugging it took to switch it back.Reviving a Shelved Router: Reflashing a GL-SFT1200https://chengyu.eu/posts/gl-sft1200-router-reflash/Wed, 11 Jun 2025 11:00:16 +0000https://chengyu.eu/posts/gl-sft1200-router-reflash/A painfully slow GL.iNet Opal, rescued from a drawer with a two-step official firmware upgrade instead of a U-Boot flash.