Okay, this is a weird one -- Synless Acking

So, the normal TCP three way handshake looks like this:

Client       Server
SYN --------->
   <---------  SYN/ACK
ACK --------->

I'm seeing packet traces that show my first connection attempt does this:

Client       Server
SYN --------->
   <---------  ACK (with no SYN)
then nothing until a new SYN from the client

Which ... I mean ... That's a big pile of WTF going on there.

I'm not quite sure what's going on, here, but *something* is.