tl-sg108 8 port unmanaged switch - LED's
Hi all, I picked up a tl-sg108 8 port unmanaged switch second hand, and I have a question about it please? I have it connected directly, to my fibre router, all seems to be working just fine, except for one oddity.....
There is a single green LED, at each of the 8 ports, if an device is plugged into a port, the LED flashes, as I would expect, and I have 4 such devices plugged in. However, the router to switch cable, irrespective of which port I plug it into, the LED does not light up at all, no flashing, nothing. Is this normal, or does it suggest a problem please?
From switch installation guide:
Q2. The Link/Act LED is not lit when a device is connected to the corresponding port.
It is recommended that you check the following items:
A1: Make sure that the cable connectors are firmly plugged into the
switch and the device.
A2: Make sure the connected device is turned on and works normally.
A3: The cable must be less than 100 meters long (328 feet).