I've setup a client and noticing some interesting behavior which I wanted to ask the forum about.
If I send data back to another server (this case uPnP) it seems like I can get the ethernet shield to go into a weird loop and it doesn't let go of the connection for a while. Even though client.stop() is called.
I see the LINK, TX and RX lights are solid for a few seconds. The AREF, 100M and FULLLD are also lit.
Any ideas? Could it be that I'm sending HTTP 200 response too soon?