Strange issue with scp performance

[Achilleas Mantzios]

Hello list,

We have a weird situation here. We just made a clone of a virtual image running Linux and sent it over to some could provider. The problem is that the scp performance to *many* hosts in our office 
center has worsened considerably, including one freebsd box.

In this freebsd box I run also a jail, and a linux ubuntu image with bhyve. The crazy thing here is that :

1) scp from the original (local office center) linux image to the host FreeBSD, its jailed FreeBSD and its bhyve linux is 2.7 MB/s
2) scp from the cloud linux image to the host FreeBSD is slow (~300KB/s)
3) scp from the cloud linux image to the above FreeBSD's jail is slow(~300KB/s)
4) scp from the cloud linux image to the above FreeBSD's bhyve ubuntu is fast(~1->1.5MB/s)

What can cause this behavior?

PS
Please answer to me directly as I am not subscribed to -net.
Thanks a lot for any ideas.

-- 
Achilleas Mantzios
IT DEV Lead
IT DEPT
Dynacom Tankers Mgmt