Hi Franck,   I just thought I'd let you know that I have an open ticket with Meraki TAC with this very issue.   In short, there has been a issue discovered and it is now with their developers.   In the mean time our fix has been to ping the i62's every 10 seconds to keep them 'awake'. Not ideal, but until a new firmware is released this is mostly working.   cheers   Scott ... View more