i'm having a similar problem. my client responds to keep-alive pings too. it looks like the problem is related to the other hosts (duh, of course it can't be me ) ... seriously. BearShare 2.5/2.6 and LimeWire 2.4.4 seem to represent the majority of clients that my client is finding, and most of them drop my connection almost immediately. usually i'm able to sneak a ping through and sometimes i get some pongs back, enough to keep 25 (i'll explain) connections searching for other hosts. i'm using 25 because with six it was taking forever to find even one host that wouldn't drop my connection. there are a few user agents that don't drop me all the time (mostly Gnucleus 1.6.0.0/1.6.3.0 and MorpheusPE 1.3.3.2). to be fair, the LimeWire clients often send 503 error codes and X-Try headers, so maybe they're just all backed up (or "shielded leaf nodes") :P the only thing i can think of is that my handshake is bad (
i'm sending ) ... any suggestions would be very helpful. thanks!!