Mining equipment: Network switches, routers for managing multiple miners

Hello,

I have 16 miners working right now using simple mining OS. I have 8 miners connected to an unmanaged TPLink TL-SG1016 switch. I have the other 8 miners connected similarly to a separate switch. These two unmanaged switches are connected to my router (TP LINK N750) which has DHCP enabled. Router is connected to the internet.

I'm having an issue that when one of my SMOS miners freezes, it takes down the entire unmanaged switch it is connected to. i.e. all the other miners on that switch report as offline. The minute I reset the frozen miner manually (holding the power switch for 5s) all the other miners go back online and resume mining. I'm not sure if the frozen miner is flooding the switch with packets or something and I was wondering if anyone else ran into this issue.

I was hoping if anyone has a better suggestion for a network layout to manage my miners. Is there a better option I should look into than using the TP-Link unmanaged switches and router?

Is it better for my miners to be connected to a managed switch with is then connected to my router? My router also functions as the DSL gateway so I am using it to manage that and the DHCP. I thought the unmanaged switches would just function as an extension of the router (since it only has 4 ports) which is handling the IP assignment. I still don't understand why went one miner freezes, it takes down all the other miners on that switch.

Any help would be appreciated.

Thanks,