Beyond the NAT: BBR, Bufferbloat, and Why “Fast” Networks Still Feel Slow

There is a particular kind of lie your network tells you. You run a speedtest. The numbers look perfect. You breathe out. The server is “fine”. Then you do something boring: pull a container image, push a release artifact, rotate a backup, let your NAS sync, or start a CI job that is basically a conveyor belt of uploads. Suddenly the machine feels haunted. SSH keystrokes arrive late. API p99 looks…