TP-Link TL-SG108S user manual

Usually, There is not a default username and password for TP-Link TL sg108e, but the default IP address is 192.168.0.1 and you can try 'admin' for both username and password when you try to login to the switch for the first time.

However, if this is not your first time, someone may have changed these. In that case, you can reset the switch to its factory setting by pressing and holding the reset button for more than 5 seconds. Then use the default ones to log in.
Remember to change the username and password after you first log in for better security.

The lights on a TP-Link Ethernet switch indicate the status and activity of the ports and the switch itself. Here is the general meaning of the lights on a TP-Link Ethernet switch:
1. Power LED: Indicates that the switch is receiving power.
2. System LED: This light indicates the operational status of the switch. It usually turns solid green when the switch is functioning properly.
3. Link/Act LED: Each port on the switch has a Link/Act LED. The LED will be lit if a network cable is properly connected and transmitting data. It may blink when there is data activity. If the LED is off, it means there is no link detected or the port is not active.
4. Speed LED: Some switches have an additional Speed LED on each port. The LED may turn green if the port is connected to a device with a 1000Mbps (Gigabit) connection or an amber color for a 10/100Mbps connection.
Note that the exact configuration and behavior of the lights might vary slightly between different models and generations of TP-Link Ethernet switches. It is advisable to consult the user manual or documentation specific to your switch for accurate information.