I've got one device on my network that randomly, and suddenly, loses its connection to the internet. Full stack Meraki; wired and wireless interfaces are affected.
The short term fix is to change the DNS from the Meraki DHCP assigned address to something else.
Device is an iMac 24" M1, running 12.3, but the problem has been around since release of the iMac when it was running previous OSes.
When it fails, WiFi only devices, such as an iPad, continue to work.
This means it only affects the one wired device on the network - the other wireless users either never notice it or never complain - and that includes just one portable device and a few TV's. And the TV's are ALWAYS on, so it seems to be just affecting the iMac.
It is completely random - there is no way to do a packet capture when it happens - but it happens 1-3 times per month.
Any ideas on tracking this down?