TP-Link T2600G-52TS TL-SG3452 T2600G-52TS V1 Installation Guide - Page 27

Appendix A, Troubleshooting

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Gigabit L2 Managed Switch Appendix A Troubleshooting Q1. What could I do if I forgot the username and password of the switch? 1. Connect the console port of the PC to the console port of the switch and open a terminal emulation program. 2. Power off and restart the switch. When you are prompted that "Hit any key to stop autoboot" in the terminal emulation program, please press any key to enter into bootUtil menu shown as the following figure. 3. Enter the number 2 to reset the system. The system will be reset to the factory default settings, and the default login user name and password are both admin. Q2. Why does the PWR LED work abnormally? The PWR LED should be lit up when the power system works normally. If the PWR LED worked abnormally, please take the following steps: 1. Make sure that the power cable is connected properly, and the power contact is normal. 2. Make sure the voltage of the power supply meets the requirement of the input voltage of the switch. Q3. What could I do if I could not access the web-based configuration page? You are recommended to check the following items: 1. Check every port LED on the switch and make sure the cable is installed properly. 2. Try another port on the switch and make sure the cable meets the requirement and works normally. 3. Turn off the power. After a while, turn on the power again. 4. Make sure the IP address of your PC is set within the subnet of the switch. 5. If you still cannot access the configuration page, please restore the switch to its factory defaults. 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 21

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21
Gigabit L2 Managed Switch
Troubleshooting
Appendix A
Troubleshooting
Q1.
What could I do if I forgot the username and password of the switch?
1. Connect the console port of the PC to the console port of the switch and open a terminal
emulation program.
2. Power off and restart the switch. When you are prompted that “Hit any key to stop
autoboot” in the terminal emulation program, please press any key to enter into bootUtil
menu shown as the following figure.
3. Enter the number 2 to reset the system. The system will be reset to the factory default
settings, and the default login user name and password are both admin.
Q2.
Why does the PWR LED work abnormally?
The PWR LED should be lit up when the power system works normally. If the PWR LED
worked abnormally, please take the following steps:
1. Make sure that the power cable is connected properly, and the power contact is normal.
2. Make sure the voltage of the power supply meets the requirement of the input voltage of
the switch.
Q3.
What could I do if I could not access the web-based configuration page?
You are recommended to check the following items:
1. Check every port LED on the switch and make sure the cable is installed properly.
2. Try another port on the switch and make sure the cable meets the requirement and works
normally.
3. Turn off the power. After a while, turn on the power again.
4. Make sure the IP address of your PC is set within the subnet of the switch.
5.
If you still cannot access the configuration page, please restore the switch to its factory
defaults. 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.