My new C405DN will go to sleep normally and wake up normally on posting a print job or pressing the power button on the control panel.
However, after extended sleep (eg overnight), it wont respond to print jobs or power button and requires a hard power cycle to wake it up again.
I've read through problems with other models and theire sleep mode in earlier posts, and all the solutions seem to be in the firmware.
I've recently pdated to 68.10.41 (4/4/17) and a 'check now' says there are no updates available.
Is there a config setting I'm missing?