Wifi & uploading to Arduino Yùn not working

Development Tools IDE 1.x
1

Hi all,

Just now my Arduino Yùn has some problems. It no longer appears on my list of available wifi connections and when I tried to upload a 01.basic.blink sketch it returned this error message:

avrdude: stk500_recv(): programmer is not responding
processing.app.debug.RunnerException
	at cc.arduino.packages.uploaders.SerialUploader.uploadUsingPreferences(SerialUploader.java:129)
	at processing.app.Sketch.upload(Sketch.java:1692)
	at processing.app.Sketch.exportApplet(Sketch.java:1605)
	at processing.app.Sketch.exportApplet(Sketch.java:1577)
	at processing.app.Editor$DefaultExportHandler.run(Editor.java:2397)
	at java.lang.Thread.run(Thread.java:695)
Caused by: processing.app.debug.RunnerException: Problem uploading to board.  See http://www.arduino.cc/en/Guide/Troubleshooting#upload for suggestions.
	at cc.arduino.packages.Uploader.executeUploadCommand(Uploader.java:113)
	at cc.arduino.packages.uploaders.SerialUploader.uploadUsingPreferences(SerialUploader.java:127)
	... 5 more

The wifi has always been a bit unstable (I am not sure if this is due to being in university on a large network...), but now it is completely off.

Any help would be much appreciated.

Will

2

OK... now I no longer get the error with the uploading of the sketch, but the problem of not appearing on the list of available wifi's still exists

3

Whenever I do a reset of the wifi settings it appears again on the list. However, when I configure it, it disappears again.