This router has a known issue that prevents it from working with WiiM products. The solutions below will ensure that this router will work with WiiM.
Issue
Connecting more than one WiiM product to this router with an Ethernet cable results in a broadcast storm, causing a loss of network connectivity for all devices.
Solution
Option 1:
Wire only one WiiM product to the router or network switch.
Option 2:
Set up your WiiM in a wireless setup, without any WiiM products wired to the router.