On Thu, Sep 2, 2010 at 2:06 AM, Steve Maroney wrot= e: > I'm attempting to use Microchips TCPIP stack with a PIC18F2550. This might itself be a problem due to the limit memory of the PIC18F2550. You may get better results from a bigger PIC. Are you using ENC28J60? --=20 Xiaofan --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .