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Author Topic: Original Wifi Shield not working  (Read 645 times)
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Hello everybody,

today the Arduino Wifi Shield arrived and i wanted to connect my arduino Mega 2560 with my home network. I put the shield on the arduino mega and connected the arduino mega via usb with my laptop. I tried ConnectWithWPA and ScanNetworks from skretch example but the error is "WiFi shield not present".

No led on the shield lights up. I don't now what the problem is, but maybe you can help me?

Thanks!
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Is it mating correctly with the ICSP header on the Mega2560?
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Yes, it is. Maybe i accidently touched the reset button. I read that the reset button on the shield does not only reset the userprograms but deletes the wifi firmware as well. Could this be the problem? I will try to reinstall this firmware and will report then.
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I read that the reset button on the shield does not only reset the userprograms but deletes the wifi firmware as well.
Where did you read that?  Not everything you read on the Internet is true.  (for example, that comment.)

The hardware page has a comment from someone suggesting jumpering pins 7 and 3.
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I read it on the official arduino site:

http://arduino.cc/en/Main/ArduinoWiFiShield

"The reset button on the shield resets both the HDG104 and the Arduino board."
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"The reset button on the shield resets both the HDG104 and the Arduino board."
Where is the "but deletes the wifi firmware as well" part?

RESET means "reset the machine."  Not "deletes firmware."
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Hmm.. I thought that resetting the HDG104 means deleting the firmware. But now i know thats wrong. Thanks! Aaaaand you were right: Connecting pins 7 and 3 is the solution. Do you know why? I really want to know why.

Thank you smiley
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