Cisco Systems OL-8376-01 manual General Troubleshooting

Chapter 1 FAQs and Troubleshooting

General FAQs and Troubleshooting

A.Upgrading your WLSE will not disrupt service on your access points. The APs connectivity will remain intact and the WLAN will function normally.

General Troubleshooting

This section provides the following troubleshooting information:

•	Symptom	After the WLSE reboots, the Internal Server Error message appears in the UI.
•	Symptom	When I try to access an access point web page through the WLSE, the following error
	message appears: Action Cancelled.
•	Symptom	Cannot recover after incorrect setup program entry.

•Symptom Cannot log into the system.

•	Symptom	Cannot log in as a system administrator.
•	Symptom	After the WLSE 1130 series starts up, the setup login prompt appears. After you use the
	setup program, the WLSE cannot connect to the network.
•	Symptom	Cannot connect to the WLSE using a Web browser.
•	Symptom	The system time or date is incorrect.
•	Symptom	The system cannot boot from the hard drive during a reboot.
•	Symptom	Cannot connect to system with Telnet or Telnet interaction is slow.

•Symptom Cannot boot from the recovery CD.

•	Symptom	Cannot successfully connect to the WLSE by using a console.
•	Symptom	Pop-up windows are blocked and screens are not refreshed.
•	Symptom	After performing certain operations on the WLSE, such as clicking Apply in the Display
	Faults page, then clicking the client browser Refresh button, a pop-up message is generated
	indicating that the page cannot be refreshed.
•	Symptom	The Web interface of the WLSE is not available, but you can log in to the CLI.

Symptom After the WLSE reboots, the Internal Server Error message appears in the UI.

Possible Cause The servlet engine in the WLSE is starting up. In a redundant WLSE pair, the active WLSE has lost contact with the standby WLSE. The standby WLSE is not up yet and returns this error when the active WLSE makes a request of it. This message will disappear when the standby WLSE has started up.

Recommended Action Wait for 20 to 30 seconds, then log in again.

FAQ and Troubleshooting Guide for the CiscoWorks Wireless LAN Solution Engine

1-4 OL-8376-01