Hello,

I'm seeing continuous slow download speeds from Amazon S3, but only on FreeBSD. 
Other OSes saturate the connection without problems.

This happens with 10.3-RELEASE and 11.0-RELEASE and only with AWS S3 in 
different regions (Ireland, London, Frankfurt, US Standard have been tested) 
whilst using fetch, curl, et. al.

I have tested this on multiple machines, bare metal, bhyve, Xen and VMware VMs, 
routed setups and direct pppoe links.. all the same.

Anyone seeing similar issues?

Here's a url to try:

http://s3.eu-central-1.amazonaws.com/4f48caf1d8bcbef8/c5b38f8b3625d2b6/zerofile.raw

Also, when doing double NAT, i.e. VMware Fusion FreeBSD Guest with "Share with 
my Mac"-Interface, the machine is doing completely fine, as in saturates the 
link, 90Mbps otherwise between 12-15Mbps..

I also switched the FreeBSD Routers with Linux-based ones and with the 
isp-provided router box, with the same result.

I have launched VMs with Digital Ocean to "rule out" my ISP and there seems to 
be the same issue. Downloading from S3 is multiple times slower than any other 
connection to services outside of S3 or on any other OS.

It seems like other people are seeing the same issue:

https://forums.freebsd.org/threads/59756/#post-343064
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