Well you need to have admin access to the switch via dashboard, there are three things before we go anywhere else with this problem 1) No link lights when connecting a device to an Ethernet switch port We need to check, Switches > Configure > Switch ports, clicking the port in question and check for port status ( Enabled or disabled) 2) Switch doesn't recognize a connected SFP module As you said, it is already compatible, the status of that module can be seen in Dashboard under Switches > Monitor > Switch ports by looking at the port 3) No power delivered to a connected Power over Ethernet (PoE) device PoE can be enabled on a switch port in Dashboard under Switches > Configure > Switch ports
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