Clients showing up as "unknown" without any information

[wetsandwich]

Wondered if anyone else was experiencing this issue where a couple clients or so at a time would suddenly show up as unknown without any identifying information when you click it. 

I don't want to delete them because they could be legitimate clients with msi that suddenly is not talking back. 

[PhilipDAth]

Is the traffic flow for the clients symmetric?  i.e. Does all traffic to and from them pass through the MX?

Perhaps the clients are generating to little data for the system to account for them.

[Adam]

So they show up normally for a while and then switch to showing up as unknown?  Is this for machines that are maintaining connectivity to the network or traveling/wireless machines?

[wetsandwich]

Its hard to tell yet because all the fields are blank or have the word unknown in it. My assumption is they are existing clients mobile or not. We have ONLY laptops and desktop machines both windows and ios based on our implementation of SM. I'm not sure how they would show up if they weren't already there and ones we manually installed the meraki agent on.