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Cisco Bug: CSCvv22896 - 11ax Downlink/Uplink was changed to enable when upgrade AP1852 from 8.5 to 8.10

Last Modified

Sep 09, 2020

Products (1)

  • Cisco 5500 Series Wireless Controllers

Known Affected Releases

8.10(122.0)

Description (partial)

Symptom:
Customer faced several problems about 802.11ax settings on COS AP(AP1852I).AP1832I doesn't support 802.11ax now,however,if we upgrade ME from 8.5.151.0/8.5.161.0 to 8.10.122.0,802.11ax settings of old wlan will be changed to enabled status unexpectedly.Besides,if we create a new wlan on 8.10.122.0,802.11ax will be disable.Issue can be reproduced on TAC lab.

H/W:AP1852I
S/W:8.5.161.0 > 8.10.122.0

Step1.
Create wlan1 on 8.5.161.0,show wlan 1 find that there's no 802.11ax item(both on GUI&CLI)

Step2.
Upgrade to 8.10.122.0.
(Cisco Controller) >show wlan 1
11ax Downlink MU-MIMO............................ Enabled
11ax Uplink MU-MIMO.............................. Enabled
11ax Downlink OFDMA.............................. Enabled
11ax Uplink OFDMA................................ Enabled
Wifi Alliance Multiband Operation................ Disabled
11ax Target Wake Time............................ Enabled

Step3.
Create wlan2 on 8.10.122.0,show wlan2 found 802.11ax settings are disable.
(Cisco Controller) >show wlan 2
WLAN Identifier.................................. 2
Profile Name..................................... test2
Network Name (SSID).............................. test2
11ax Downlink MU-MIMO............................ Disabled
11ax Uplink MU-MIMO.............................. Disabled
11ax Downlink OFDMA.............................. Disabled
11ax Uplink OFDMA................................ Disabled
Wifi Alliance Multiband Operation................ Disabled
11ax Target Wake Time............................ Enabled

Conditions:
Upgrade ME from 8.5 to 8.10.122.0
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