getdata ignored

[grau]

Would you please have a hint what goes wrong here:

Standard peers (Satoshi 6.x, 7.x) answer my self coded version of verack, inv and getdata if running on my laptop behind a router connected to the internet, but if I run the same code on my server on the internet, the getdata requests are ignored. I get version, verack, inv and addr messages but no blocks I request.

The messages I send seem to be identical (besides address and random nonce).

Thanks for any pointer.

[grau]

Solved: I was talking too fast to the standard client...  I am using Java NIO.
Breaking down my output to 8K buffers was the only change needed.