ZyXEL P-663H-51 Guia Do Utilizador

 Chapter 24 Troubleshooting

P-663H-51 User’s Guide

6 If the problem continues, contact the network administrator or vendor, or try one of the 

advanced suggestions.

V

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

1 Make sure you have entered the user name and password correctly. The default password 

is 1234. This field is case-sensitive, so make sure [Caps Lock] is not on.

2 Turn the ZyXEL Device off and on. 
3 If this does not work, you have to reset the device to its factory defaults. See 

.

V

I cannot access the Internet.

1 Check the hardware connections, and make sure the LEDs are behaving as expected. See 

. 

2 If your ISP gave you Internet connection information, make sure you entered it correctly 

in the Network > WAN > Internet Connection screen. These fields are case-sensitive, 
so make sure [Caps Lock] is not on. 

3 Disconnect all the cables from your device, and follow the directions in 

 again. 

4 If the problem continues, contact your ISP. 

V

I cannot access the Internet anymore. I had access to the Internet (with the 
ZyXEL Device), but my Internet connection is not available anymore.

1 Check the hardware connections, and make sure the LEDs are behaving as expected. See 

. 

2 Reboot the ZyXEL Device.
3 Turn the ZyXEL Device off and on.
4 If the problem continues, contact your ISP. 

V

The Internet connection is slow or intermittent.