@knc1:
Just updated the snapshots, everything but readelf should now be fixed

. Thanks for the heads up and detailed report

.
As for the finicky power savings of the K2, try stopping powerd, IIRC, that was the usual workaround. I can't remember if it's only needed with telnet or not, there might be some hints about that in the USBNet readme, but I don't remember having to do it over SSH... Might be a list of monitored ports somewhere...
@geekmaster: Is there a grsec kernel involved somewhere? Or some other hardened features?