Troubleshooting your NearBus Connection
If your Arduino remains DOWN, make the following verifications:
ETHERNET CHECK LIST 1- Verify that the green light in the Arduino's Ethernet connector is flashing. 2- Verify that your internet connection is Up (if you can surf the internet). 3- Verify that your Arduino "user" and "password" are configured Ok (the 8 character password, the Device_ID and the Arduino's MAC). 4- Verify that your Arduino's Ethernet MAC address is configured Ok (you can find it a label on the back side of your arduino Ethernet board). 5- Reset the Arduino, to ensure that it is properly initialized.
WiFi CHECK LIST 1- Verify that the green light (Link) in the Arduino's WiFi board is ON. 2- Verify that your internet connection is Up (if you can surf the internet). 3- Verify that your Arduino "user" and "password" are configured Ok (the 8 character password and the Device_ID). 4- Verify that your WiFi SSID is configured OK, and the "wifimode" parameter matches with your WiFi router configuration (Open = 0 | WAP2 = 1 | WEP = 2). If you find issues try to configure your wireless LAN in open mode (to test the Arduino connection). 5- Remember checking if your WiFi router has configured the MAC Filtering Feature (in this case you should enable the Arduino's WiFi MAC on it !!). 6- Reset the Arduino, to ensure that it is properly initialized.
NETWORK TOOL: With Advanced IP Scanner you be able to scan all your IP addresses including Wi-Fi network. Download App: 
IMPORTANT: The NearBus screens do not refresh in an automatic way, so you should reload it in order to get the device status.
REMEMBER: If you are experimenting random errors with your code (usually on memory exhaustion conditions), verify that the #define parameters DEBUG_DATA, DEBUG_BETA and DEBUG_ERROR (in file NearBusxxx_xxx.h) are all set to 0 (in order to deactivate the output debug messages). #define DEBUG_DATA 0 // Set to 1 by default #define DEBUG_BETA 0 #define DEBUG_ERROR 0