WARNING: did not receive ack of last datagram after 10 tries.

[Henry F. <he...@md...>]

When I try to run iPerf to one of my remote servers, I get the following 
error:
WARNING: did not receive ack of last datagram after 10 tries.

What does this mean?

I have tried with versions 1.7.0 and 2.0.2.  The server is running on 
Windows, and I have tried both Windows and Linux for the client.  The 
server is behind a firewall but I have opened up the firewall completely 
to this machine.  I am running Ethereal on the server and I see the 
iPerf packets come from the client, but I don't see any responses going out.

Please help.