Cisco Systems CISCO1750 manual Troubleshooting the Power System

Problem Solving

Table 2	Troubleshooting WICs and VICs (continued)
Symptom		Possible Solution(s)
Router powers on and boots only		• Confirm that the Cisco IOS release installed in the router
when a particular WIC or VIC is		supports the WIC or VIC. The Cisco WAN Interface Cards
removed from the router.		Hardware Installation Guide lists the software requirements for
		each card.
		• The router might be overheating. Contact your Cisco reseller.
Router powers on and boots only		There might be a problem with the WIC or VIC cables. Consult your
when a particular cable is		Cisco reseller for warranty information.
disconnected.

Troubleshooting the Power System

If the router external power supply fails, return it to your Cisco reseller. Table 3 lists symptoms and possible solutions of power problems.

Table 3 Troubleshooting the Power System

Symptom	Possible Solution(s)
Router shuts down after being on for	• Make sure that the area in which the router is installed
a short time.	meets the environmental site requirements in the
	“Technical Specifications” appendix in this guide and in
	the “Site Requirements” section in the Regulatory
	Compliance and Safety Information for the Cisco 1600 and
	Cisco 1700 Routers document that came with your router.
	• Make sure nothing is blocking the fan vent on top of the
	router.
	• If the front-panel PWR LED is not on, the power supply has
	failed.
The router attempts to boot, but all	The power supply has failed. Return the router to your Cisco
LEDs remain off.	reseller.

Cisco 1750 Router Hardware Installation Guide

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