ZyXEL Communications P-870HW-51a v2 Benutzerhandbuch

 Chapter 18 Troubleshooting

P-870HW-51a v2 User’s Guide

• If you changed the IP address (

), use the new IP address.

• If you changed the IP address and have forgotten it, see the troubleshooting 

suggestions for 

Check the hardware connections, and make sure the LEDs are behaving as 
expected. See the Quick Start Guide.

Make sure your Internet browser does not block pop-up windows and has 
JavaScripts and Java enabled. See 

Reset the device to its factory defaults, and try to access the ZyXEL Device with 
the default IP address. See 

If the problem continues, contact the network administrator or vendor, or try one 
of the advanced suggestions.

• If your computer is connected wirelessly, use a computer that is connected to a 

ETHERNET port.

I can see the Login screen, but I cannot log in to the ZyXEL Device.

Make sure you have entered the user name and password correctly. The default 
password is 1234. These fields are case-sensitive, so make sure [Caps Lock] is 
not on. 

Turn the ZyXEL Device off and on. 

If this does not work, you have to reset the device to its factory defaults. See 

I cannot access the Internet.

Check the hardware connections, and make sure the LEDs are behaving as 
expected. See the Quick Start Guide and