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After the upgrade to 10.11.05, the Radio 1 (5 GHz channel) on the AP3965i Access Points were stuck in a scanning state.

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TitleAfter the upgrade to 10.11.05, the Radio 1 (5 GHz channel) on the AP3965i Access Points were stuck in a scanning state.
Symptoms
After the upgrade to 10.11.05, the Radio 1 (5 GHz channel) on the AP3965i Access Points were stuck in a scanning state.
Environment
  • ExtremeWireless appliances
  • AP3965i
  • AP3935
  • Firmware 10.11.05
Cause
A race condition in the DCS/ACS functionality caused the radios to remain in a scanning state.
Resolution
  • Depending on the network Channel plan, please use non-DFS channels if the logs are showing radio RADAR messages.
  • Please upgrade to 10.21.02 or higher
Additional notes
Release Note: wns0017185 - Addressed AP Multi-Edit race condition for Auto-Channel Selection (ACS) configuration that could cause radio to become non-responsive

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