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Cisco Bug: CSCvu41319 - 1570 APs joined to 9800 WLC stop allowing clients to connect in 5GHz

Last Modified

Aug 28, 2020

Products (1)

  • Cisco Catalyst 9800 Series Wireless Controllers

Known Affected Releases

17.1.1s

Description (partial)

Symptom:
After some time, 1570 AP joined to a 9800 WLC with proper policies stops allowing client connections.
Packet capture shows that 802.11 authentication packets are sent from the client, and ACK is sent from the AP side, but no further response is sent.
Traces on the AP show no data from these incomming packets.

Conditions:
1570 AP joined to Catalyst 9800
Only affects 5GHz band
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  • Status
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