I have a Arduino Uno R3 with ethernetshield(W5100), Arduino IDE 1.0.1. My program has a webserver and a fixed ip address (192.168.1.200) and I created some buttons on a website to execute some functions, that works fine. In one of the function I want to post a message to Twitter. I use the Twitter library 1.3.0 from here http://playground.arduino.cc/Code/TwitterLibrary
. I followed the instruction. When the arduino has a fixed ip (Ethernet.begin(mac,ip)
the connection fails. When it gets an IP from DHCP server(Ethernet.begin(mac)
, connection is succesfull. Does anyone know why it fails when I use a fixed IP address? I want to use a fixed IP so I can forward an external incoming port to the fixed ip of the arduino.