ZyXEL Communications ES-1552 Switch User Manual


 
ES-1552 User’s Guide
139
CHAPTER 21
Troubleshooting
This chapter covers potential problems and possible remedies.
21.1 Problems Starting Up the Switch
21.2 Problems Accessing the Switch
21.2.1 Pop-up Windows, JavaScripts and Java Permissions
In order to use the web configurator you need to allow:
Web browser pop-up windows from your device.
JavaScripts (enabled by default).
Java permissions (enabled by default).
Table 69 Troubleshooting the Start-Up of Your Switch
PROBLEM CORRECTIVE ACTION
None of the LEDs
turn on when you
turn on the switch.
Check the power connection and make sure the power source is turned on.
If the error persists, you may have a hardware problem. In this case, you should
contact your vendor.
Table 70 Troubleshooting Accessing the Switch
PROBLEM CORRECTIVE ACTION
I cannot
access the
web
configurator.
The administrator username is “admin”. The default administrator password is “1234”.
The username and password are case-sensitive. Make sure that you enter the correct
password and username using the proper casing. If you have changed the password
and have now forgotten it, you will need to reset the switch to its factory defaults.
Press the RESET button on the front panel of the switch for one second and the
switch automatically reloads its default configuration file. The IP address of the switch
reverts to “192.168.1.1”.
Your computer’s and the switch’s IP addresses must be on the same subnet.
See the following section to check that pop-up windows, JavaScripts and Java
permissions are allowed.