ZyXEL Communications Omni 56K II User Manual

Omni 56K II and Omni 56K Plus II User’s Guide 

Troubleshooting  

 

7-1 

None of the LEDs turn on when 
I start the modem. 

Make sure your modem is turned on and the included power adapter 
is connected to it as well as plugged into an appropriate and 
functioning power outlet. 

Check the RS-232 cable connections between the modem and your 
computer (Omni 56K Plus only). 

Check the USB cable connections between the modem and your 
computer (Omni 56K Plus II only). 

Carefully follow the instructions in this User’s Guide to install the 
software driver.  

Contact technical support if these steps fail to solve the problem. 

I cannot access the modem via 
my computer. 

Make sure the modem’s RS-232 port is connected to your 
computer’s serial port (Omni 56K Plus only). 

Unplug the USB cable and plug it back in again (Omni 56K Plus II 
only). 

Restart your computer. 

I cannot connect to the Internet.  

 

Make sure the Line port is properly connected to the wall jack.  

Restart the modem by using the ON/OFF switch on your modem.   

Restart your computer. 

Make sure that you have entered your ISP connection information 
correctly.  The password may be case sensitive, so make sure that 
the Caps lock key is not turned on. 

Make sure that your computer’s TCP/IP settings are configured 
properly.