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Cisco Bug: CSCuq61890 - 5508 WLC Silent crash on 7.4.121.0

Last Modified

Jul 21, 2020

Products (1)

  • Cisco 5500 Series Wireless Controllers

Known Affected Releases

7.4(121.0)

Description (partial)

Symptom:
5508 WLC reboots unexpectedly on 7.4.121.0 version

WLC will reboot two or three times per week without leaving any crash file on flash
Some hours before it crashes, a show process memory a high number of bytes in use could be noted for emweb and SNMPTask

Conditions:
802.1x/WPA2/AES, PSK/WPA2/AES enabled, NO webauth

On GUI, memory usage would be higher than 85% when issue noted

Last reset would indicate Watchdog reset
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