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Chapter 6.  Troubleshooting 
 
Wireless Cable Modem Gateway CG2003D User Manual 
Cannot Log in to the Gateway
If you are unable to access the gateway’s main menu from a computer on your local network, 
check the following:
•     
Check the Ethernet connection between the computer and the Gateway as described in 
the previous section.
•     
Make sure that your PC’s IP address is on the same subnet as the Gateway. If you are 
using the recommended addressing scheme, your PC’s address should be in the range of 
192.168.0.10 to 192.168.0.254. Refer to the link to the online document 
Note:  
If your PC’s IP address is shown as 169.254.x.x: 
Recent versions of Windows and MacOS will generate and assign 
an IP address if the computer cannot reach a DHCP server. These 
auto-generated addresses are in the range of 169.254.x.x. If your IP 
address is in this range, check the connection from the PC to the 
gateway and reboot your PC.
•     
If your gateway’s IP address has been changed and you don’t know the current IP 
address, clear the gateway’s configuration to factory defaults. This will set the Gateway’s 
IP address to 192.168.0.1. This procedure is explained in 
43.
•     
Make sure your browser has Java, JavaScript, or ActiveX enabled. If you are using 
Internet Explorer, click Refresh to make sure that the Java applet is loaded.
•     
Try quitting the browser and launching it again.
•     
Make sure you are using the correct login information. The gateway has two user names 
both lower-case (Caps Lock should be off):
-
The superuser login name is MSO with the default password of changeme.
-
The other login name is admin with the default password of password
If the Gateway does not save changes you have made, check the following:
•     
When entering configuration settings, be sure to click the Apply button before moving to 
another screen, or your changes are lost. 
•     
Click the Refresh or Reload button in the Web browser. The changes may have occurred, 
but the Web browser may be caching the old configuration.