Installation guide
ix
Cisco 1750 Router Hardware Installation Guide
78-6169-02
Problem Solving
Table 2 lists problems that could occur with the WICs and VICs and the possible 
solutions of these problems.
.
Table 2 Troubleshooting WICs and VICs
Symptom Possible Solution(s)
Router does not recognize the 
card.
• Confirm that the Cisco IOS release installed in the router 
supports the WIC or VIC.
• Make sure you have a Cisco IOS feature set that supports voice. 
The Cisco WAN Interface Cards Hardware Installation Guide 
lists the software requirements for each card.
• Make sure that the card is correctly installed in the router. Refer 
to the “Installing WICs and VICs” section in the “Installation” 
chapter.
Router recognizes the card(s), 
but the card port(s) do not 
initialize.
• Make sure that the card is correctly installed in the router. Refer 
to the “Installing WICs and VICs” section in the “Installation” 
chapter.
• Check the external cable connections to make sure they are 
secure.
Router does not boot properly or 
continuously or intermittently 
reboots.
Make sure that the WIC or VIC is correctly installed in the router. 
Refer to the “Installing WICs and VICs” section in the 
“Installation” chapter.
Router does not boot or reset 
after the WIC or VIC is inserted.
There might be a short. Turn off the router immediately.
Router boots, but the console 
screen is frozen.
• Make sure the console cable is securely connected to the router 
and to the PC or terminal.
• Verify that the parameters for your terminal are set to the 
following:
–
9600 baud
–
8 data bits
–
No parity 
–
1 stop bit
–
no flow control










