Something weird I've noticed since upgrading my office router to the Buffalo WZR-HP-G300NH. When I remote in using an SSH tunnel, the tunnel will freeze pretty often. The freeze lasts 1-2 minutes each, after which all the traffic that was stuck catches up. It's very annoying to be using VNC and have the session pause every few minutes. I am using the following command from my local machine: ssh -D 9000 root@my.router.hostname I know the whole router isn't freezing because I can open another SSH session and it's fine -- until it freezes, too. The freezing sessions are independent of each other. Both will periodically freeze, but not at the same time. I can start a ping going in both sessions and neither loses a single packet or even shows any lag, even though the both freeze a couple times.If I forward the VNC port straight through to the remote machine, the problem gets somewhat better leading me to believe this is more likely a TCP issue rather than SSH. But I'm not ruling anything out.This behavior has persisted despite upgrading firmwares to the latest dd-wrt, including the build that was pulled a few weeks ago.Is it a problem with dropbear? Or with MTU? QoS?
SSH tunnel to router periodically hangs. TCP problem?
ssh;tcp;router