Failed connection message

Have you first tried power-cycling / re-starting the device by unplugging it for a minute ? Still no joy ? Try hard resetting the device to factory defaults by pressing and holding in the recessed reset button on the rear (or use the WPS button if it doesn't have a reset button hole) for 25-30 seconds. This can sometimes clear up some weird behavior issues. You will lose any customized settings, and they will need to be re-configured from scratch if you do the latter.

Good luck !