Hi,There is a managed switch DES-1210-52 / ME, to which antminer and ibelink are connected, antminer is visible on the network, and ibelink does not pass, it works only directly with the router or any other unmanaged switch.
ibelink latest firmware
firmware DES-1210-52 / ME does not help too
If you set the Static IP option, is the correct IP address set in the miner and the router? With a managed switch, there may be additional settings that need to be set to allow internet access. The DM11G works best if connected directly to the router or an unmanaged switch.