I think you may be experiencing an issue I investigated and fixed a few years ago, due to the TCP stack not setting up the MTU properly on incoming connections.
You can look at this old thread from 9fans: https://www.mail-archive.com/9fans@9fans.net/msg33754.html The fix is available here: http://9legacy.org/9legacy/patch/9-tcp-mss.diff -- David du Colombier ------------------------------------------ 9fans: 9fans Permalink: https://9fans.topicbox.com/groups/9fans/Ta94caa59de01adf8-Mbe2dcd2dd02c5ed6483c9efb Delivery options: https://9fans.topicbox.com/groups/9fans/subscription