Ssh – scp stalls and ssh sessions freeze up (but eventually start again)

scpssh

I am running ubuntu on various computers on a home wireless network. Some are on 9.04×64, some 10.04×64 and one 9.04×32.

Running scp with a large file starts out at 2.1 mbps and drops down to about 200k, stalling and dropping until the transfer is complete. I've noticed this when I have a secure shell open on any of these servers as well.

I have tried this with 2 different routers, both brand new, different brands.

Best Answer

Have you tried a transfer between two of the systems while they were directly connected to each other? That's the only sure-fire way to rule out the network gear as a source of the problem.