Zhone 6212-a2 ユーザーズマニュアル

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6212-A2 and 6382-A1 ADSL Router User’s Guide 
 
 
5. Troubleshooting 
Below is a list of commonly asked questions. Before calling technical support, please look through these issues to 
see if they help solve your problem. 
5.1 
The router is not functional. 
1.  Check to see that the power LED is green and than the network cables are installed correctly. Refer to the 
Installation section for details. 
2.  Check to see that the LAN and WAN LEDs are green.  
3.  Check to see that the DSL LED is green 
4.  Check the settings on your PC. Again, refer to thConfiguring Your PC section for more details. 
5.  Check the router’s settings. 
6.  From your PC, can you ping the router?  Assuming that the router has DHCP enabled and your PC is on the 
same subnet as the router, you should be able to ping the router.  
7.  Can you ping the WAN?  Your ISP should have provided the IP address of their server. If you can ping the 
router and your protocols are configured correctly, you should be able to ping the ISP’s network. If you 
cannot ping the ISP’s network, make sure you are using the correct protocols with the correct VPI/VCI 
values. 
8.  Make sure NAT is enabled for your connection. If NAT is disabled, the router will not route frames correctly.  
 
5.2 
I can’t connect to the router. 
1.  Check to see that the power LED is green and that the network cables are installed correctly. Refer to the 
Installation section for details. 
2.  Make sure that your PC and the router are on the same network segment. The router’s default IP address is 
192.168.1.1. If you are running a Windows-based PC, you can open a command prompt window and type 
ipconfig to determine your network adapter’s IP address. Make sure that the network adapter that is 
connected to the router is in the same 192.168.1.x subnet. 
3.  Your PC’s subnet mask must match the router’s subnet mask. The router has a default subnet mask of 
255.255.255.0.   
4.  If this still does not work, press the reset button for 10 seconds. This will place the router into its factory 
default state. Go through the above procedures again. 
5.  Make sure NAT is enabled for your connection. If NAT is disabled you the router will not route frames 
correctly.  
 
5.3 
The LEDs blink in a sequential pattern. 
This typically means that either the kernel or flash file system is corrupted. Notify your service provider. 
  
  
5.4 
The DSL Link LED continues to blink but does not go solid 
This means that the DSL line is trying to train but for some reason it cannot establish a valid connection. The likely 
cause of this is that you are too far away from the central office. Contact your DSL service provider for further 
assistance. 
Common Problems and Solutions
 
  
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