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Updated the Products Affected and Workaround/Solution Sections
|Affected OS Type
||Affected Release Number
126.96.36.199, 188.8.131.52, 184.108.40.206, 220.127.116.11, 18.104.22.168, 22.214.171.124
||2800, 3800 and 1560 series APs fail to pass traffic|
Wireless clients might intermittently be unable to pass traffic after association.
Due to a software problem in certain Cisco Aironet Access Points (APs), some clients might be unable to pass traffic after association.
A wireless client automatically associates, but after a few seconds it is no longer able to ping its default gateway. If, at that time, this output from the AP CLI is examined:
If the client MAC address is present in the show controllers dot11Radio 0 client or show controllers dot11Radio 1 client command output and not present in the show controllers nss status command output, you have encountered this bug.
AP-2802-CLI# show controllers dot11Radio 1 client
mac radio vap aid state encr Maxrate is_wgb_wired wgb_mac_addr
11:22:33:44:55:66 1 3 16 FWD OPEN MCS82SS false 00:00:00:00:00:00
AA:BB:CC:DD:EE:FF 1 3 145 FWD OPEN MCS82SS false 00:00:00:00:00:00
AA:AA:AA:BB:BB:BB 1 2 20 FWD OPEN MCS93SS false 00:00:00:00:00:00
BB:BB:BB:AA:AA:AA 1 2 181 FWD OPEN MCS82SS false 00:00:00:00:00:00
AB:AB:AB:BA:BA:BA 1 4 171 FWD AES_CCM128 MCS82SS false 00:00:00:00:00:00
CC:DD:EE:FF:GG:HH 1 2 98 FWD OPEN MCS82SS false 00:00:00:00:00:00
AP-2802-CLI#show controllers nss status
Current Count: 5
| MAC | OPAQUE |PRI POL|VLAN|BR|TN|QCF|BSS|RADID|MYMAC|
|BB:BB:BB:AA:AA:AA|B8241B94| 1| 0| 1| 1| 0| 2| 1| 0|
|AA:BB:CC:DD:EE:FF|B8241B94| 1| 0| 1| 1| 0| 3| 1| 0|
|AA:AA:AA:BB:BB:BB|B8241B94| 1| 0| 1| 1| 0| 4| 1| 0|
|AB:AB:AB:BA:BA:BA|B8241B94| 1| 0| 1| 1| 0| 2| 1| 0|
|CC:DD:EE:FF:GG:HH|B8241B94| 1| 0| 1| 1| 0| 2| 1| 0|
In the example output, the client MAC address 11:22:33:44:55:66 is not present in the show controller nss status command output and hence the AP has encountered this issue.
The software upgrades are:
- 126.96.36.199 or later
- 188.8.131.52 or later
- 184.108.40.206 or later
- 220.127.116.11 or later
How To Identify Affected Products
This problem affects only these AP series with the affected software versions noted previously:
- Cisco Aironet 1560 Series
- Cisco Aironet 2800 Series
- Cisco Aironet 3800 Series
For More Information
If you require further assistance, or if you have any further questions regarding this field notice, please contact the Cisco Systems Technical Assistance Center (TAC) by one of the following methods:
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