For quite some time (years) google cloud print has been working fine.  I recently noticed that my E310dw wouldn't work with google cloud print (print manager said the printer was offline..although it printed fine via windows computer & airprint).

I de-registered the printer and then tried to re-register it.  It won't re-register, it keeps timing out.  So then I tried rolling back to the previous firmware (I had just updated to the latest when I noticed the problem).  Rolling back did nothing...any thoughts?