We've deployed about 20 Z3s to remote employees over the last few months. For the most part, things have been working really well.
With a handful of devices, we've noticed a problem where the throughput seems to drop as the work week progresses. A connection will go from 100 Mbit/s + to somewhere around 3-5 Mbit/s. A device reboot seems to correct the problem.
Has anyone else noticed anything like this? Any ideas?
I'm not aware of any 'normal' networking causes for what you describe. It doesn't sound like packet loss from a duplex mismatch, for example. And it is obviously not a wireless issue that could have those symptoms. It seems more like a software bug in the Z3 perhaps. Something like a memory leak or overflowing sessions table over time, etc. I would open a case with Meraki and they may suggest trying new/beta firmware.