With the switch powered on, press the Reset button on the front panel 
for ve seconds to reset the system to its factory default settings, and the 
default login user name and password are both admin.
The Power LED should be lit up when the power system works normally. If 
the Power LED worked abnormally, please take the following steps:
Make sure that  the power cable is connected  properly, and the power 1. 
contact is normal.
Make sure the voltage of the power supply meets the requirement of the 2. 
input voltage of the switch.
You are recommended to check the following items:
Check  every  port  LED  on  the  switch  and  make  sure  the  cable  is 1. 
connected properly.
Try  another  port  on  the switch  and  make  sure  the  cable  meets  the 2. 
requirement and works normally.
Turn off the power. After a while, turn on the power again.3. 
Make sure the IP  address of  your PC  is  set  within the subnet  of  the 4. 
switch.
If  you  still  cannot  access  the  configuration  page,  please  restore the 5. 
switch  to  its  factory  default.  Then  the  IP  address  should  be  set  as 
192.168.0.x  ("x" is  any  number  from  2 to  254)  and  Subnet  Mask  as 
255.255.255.0.
Troubleshooting