Hi,
> What would I look for in the tcpdump? Whether or not the browser takes more than 10 seconds to complete the http request, as per your configuration: timeout http-request 10s This is the timeout you are hitting. Also read this [1]. Share your tcpdump capture if it doesn't contain anything proprietary (an tell us which tcp session in the capture failed, according to your log). Regards, Lukas [1] http://cbonte.github.io/haproxy-dconv/configuration-1.5.html#timeout%20http-request
