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Cisco Bug: CSCvu89996 - AP disjoins after client connects to SSID using LDAP with mode secure // 9800 WLC

Last Modified

Oct 27, 2020

Products (17)

  • Cisco Wireless LAN Controller Software
  • Cisco 1000 Series Integrated Services Routers
  • Cisco Catalyst 9500 Series Switches
  • Cisco Embedded Services 3300 Series Switches
  • Cisco 4000 Series Integrated Services Routers
  • Cisco Catalyst 9200 Series Switches
  • Cisco Catalyst IE3300 Rugged Series
  • Cisco Catalyst 9800 Series Wireless Controllers
  • Cisco Catalyst IE3400 Heavy Duty Series
  • Cisco Catalyst 9600 Series Switches
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Known Affected Releases


Description (partial)

On C9800 running 16.12.3 and configured for secure LDAP, after client credentials are submitted, the AP that client is associated to, immediately disjoins and is unable to join back.

We see stale AP and client entry on the WLC which never get flushed.

WLC reload resolves the problem and AP joins back

Using 'mode secure' on LDAP with no trustpoint mapped and 3rd party cert used for webauth.
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
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