I have a WR44, reset to factory defaults, with the firewall off. This has a cellular pp1 connection with the SSH server enabled. When I attempt to SSH using PuTTY, I receive a “Server unexpectedly closed network connection” message.
are you actualy getting to the router?
is it a public address on PPP 1 ?
can you access the touter via telnetn / http?
does SSH work on eth interface ?
is there any errors in eventlog.txt ?
has the cert been built on the router ?
is it refrenced in SSH ?
Thank you for a nudge in the right direction James! It turns out that SSH referenced a non-existent priSSH.pem cert. I pointed SSH to the privrsa.pem cert and I can now SSH to the box.
It works with putty so this is strange.
It doesn’t work with open ssh v2 on linux. You’ll need to force open ssh to use sshV1 to make it go but putty works on both.
it may be that the firewall is on?
from what i can see the transport does not have an issue with DH groups and does not support the once used by openssh in v2 mode