message from support:
Hello kYutobi,
As discussed over the phone, MV tries to maintain its connectivity to the dashboard by sending ICMP to 8.8.8.8, ARPing for its gateway device and sending DNS queries to its assigned DNS servers for “meraki.com, google.com, yahoo.com” every 150 to 300 seconds. If the DNS queries fail at that time, the dashboard connectivity would be marked as bad DNS at that time.
MV will continue to record/store the video on the local disk, but the live stream may not be available through the dashboard if the MV loses connectivity to the dashboard at that time.
Please see the KB article below for more details:
https://documentation.meraki.com/zGeneral_Administration/Cross-Platform_Content/Behavior_during_Conn...
Regards,
Chintan Patel
Network Support Engineer | Cisco Meraki
Enthusiast