Zhone 6388 User Manual

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4. Troubleshooting
4-2
 
 February 2005
6388-A2-GB20-00
PC, type ipconfig /all (or winipcfg /all on Windows 95, 98, or ME) at a 
command prompt to determine the IP address of your network adapter. Make 
sure that it is within the same 192.168.1.x subnet. Your PC's subnet mask 
must match the router's subnet mask. The router has a default subnet mask of 
255.255.255.0.  
3. Make sure NAT is enabled if you are using private addresses on the LAN 
ports. 
LEDs Blink in a Sequential Pattern
This typically means that either the kernel or flash file system is corrupted. Notify 
your service representative.
Status LED Continues to Blink
This means that the DSL line is trying to train but for some reason it cannot 
establish a valid connection. The main cause of this is that you are too far away 
from the central office. Contact your DSL service provider for further assistance.
Status LED is Always Off
1. Make sure you have DSL service. You should receive notification from your 
ISP that DSL service is installed. You can usually tell if the service is installed 
by listening to the phone line: you will hear some high-pitched noise. If you do 
not hear high-pitched noise, contact your ISP.
2. Verify that the phone line is connected directly to the wall and to the line input 
on the router. If the phone line is connected to the phone side of the router or 
you have a splitter installed on the phone line, the DSL light will not come on.