Hi Rich, Thanks for your quick response. It does...and I do wonder if it has something to do with the bandwidth limiting / traffic shaping feature on the DrayTek router that I'm using to simulate low bandwidth. The reason I am looking at this now is because I'm experiencing some customer issues in the wild, and the only common factor is low bandwidth... So network issues seem unlikely, plus if I add some delay in my application to slow the rate at which I feed data to openssl the problem goes away, and it only occurs below 150 kpbs (getting noticeably worse as I approach 56 kpbs). Cheers, Martin On 15 May 2015 at 12:00, Salz, Rich <rsalz at akamai.com> wrote: > >I've tested with s_client between my PC and an AWS EC2 instance. I've > also tried using s_tunnel and nmap/ncat. The results appear the same. Using > wireshark I see a lot of TCP retransmissions. > > That sounds like a network issue. Try testing using something like netcat > and see if you also get TCP retransmissions. > > -- > Senior Architect, Akamai Technologies > IM: richsalz at jabber.at Twitter: RichSalz > > > _______________________________________________ > openssl-users mailing list > To unsubscribe: https://mta.openssl.org/mailman/listinfo/openssl-users > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mta.openssl.org/pipermail/openssl-users/attachments/20150515/c8ca1b9d/attachment.html>