I have a large number of identical fanless PCs running debian 6 (ARM). Most of these are connected via comcast and work ok. There are some that are connected to 'WiMax' modems and are having communication issues.
Specifically: if I ssh to one of these and try a command like 'ps -ax' I'll get about 3 lines back and then the session is locked up. If I let it sit, eventually it will close with a 'session closed by peer'.
What I've tried:
ssh -vvv→ no error messages
ssh <user@host> 'command'→ this will sometimes return the full output of the command. Sometimes it won't connect at all.
Suggestions on other things to try?
I've found that I can execute some commands successfully: e.g. hitting return a dozen times or more is ok.
cd ~ and then
lf works as does
df -h. I can run
df many times successfully but as soon as I try something with more output (e.g.
ls /etc) it locks up.
Does it make a difference that I'm trying to communicate between these two hosts using OpenVPN?