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Association and Authentication responses reason codes

Association response reason code :

Reason code field:

As you can see, some codes are irrelevant for an association response. That is because the reason code field has the same meaning wherever it is used (disassociation frames, …)

Status

Meaning

0

Success

1

Unspecified failure

2-9

Reserved

10

Cannot support all requested capabilities in the Capability Information field

11

Reassociation denied due to inability to confirm that association exists

12

Association denied due to reason outside the scope of this standard

13

Responding STA does not support the specified authentication algorithm

14

Received an Authentication frame with authentication transaction sequence number out of expected sequence

15

Authentication rejected because of challenge failure

16

Authentication rejected due to timeout waiting for next frame in sequence

17

Association denied because AP is unable to handle additional associated STAs

18

Association denied due to requesting STA not supporting all of the data rates in the

BSSBasicRateSet parameter

19

Association denied due to requesting STA not supporting the short preamble option

20

Association denied due to requesting STA not supporting the PBCC modulation option

21

Association denied due to requesting STA not supporting the Channel Agility option

22

Association request rejected because Spectrum Management capability is required

23

Association request rejected because the information in the Power Capability element is unacceptable

24

Association request rejected because the information in the Supported Channels element is unacceptable

25

Association denied due to requesting STA not supporting the Short Slot Time option

26

Association denied due to requesting STA not supporting the DSSS-OFDM option

27-31

Reserved

32

Unspecified, QoS-related failure

33

Association denied because QoS AP has insufficient bandwidth to handle another QoS STA

34

Association denied due to excessive frame loss rates and/or poor conditions on current operating channel

35

Association (with QoS BSS) denied because the requesting STA does not support the QoS facility

36

Reserved

37

The request has been declined

38

The request has not been successful as one or more parameters have invalid values

39

The TS has not been created because the request cannot be honored; however, a suggested TSPEC is provided so that the initiating STA may attempt to set another TS with the suggested changes to the TSPEC

40

Invalid information element, i.e., an information element defined in this standard for which the content does not meet the specifications in Clause 7

41

Invalid group cipher

42

Invalid pairwise cipher

43

Invalid AKMP

44

Unsupported RSN information element version

45

Invalid RSN information element capabilities

46

Cipher suite rejected because of security policy

47

The TS has not been created; however, the HC may be capable of creating a TS, in response to a request, after the time indicated in the TS Delay element

48

Direct link is not allowed in the BSS by policy

49

The Destination STA is not present within this BSS

50

The Destination STA is not a QoS STA

51

Association denied because the ListenInterval is too large


And for authentication frame :

As you can see, some codes are irrelevant for an association response. That is because the reason code field has the same meaning wherever it is used (deauthentication frames, …)

Reason code

Meaning

1

Unspecified reason

2

Previous authentication no longer valid

3

Deauthenticated because station leaving BSS/ESS

4

Disassociated due to inactivity

5

Disassociated because AP unable to handle all currently associated stations

6

Class 2 frame received from non authenticated station

7

Class 3 frame received from non associated station

8

Diassociated because station leaving BSS/ESS

9

Station requesting (re)association is not associated with the responding station.

10

Diassociated because the information in the power capability element is unacceptable

11

Disassociated because the information in the supported channels element in unacceptable

12

Reserved

13

Invalid information element (not matching standard format)

14

MIC failure

15

4-way handshake timeout

16

Group key handshake timeout

17

Information element in 4 way handshake different from association request/probe response/beacon element

18

Invalid group cipher

19

Invalid pairwise cipher

20

Invalid AKMP

21

Unsupported RSN information element version number

22

Invalid RSN information element capabilities

23

802.1x authentication failed

24

Cipher suite rejected because of security policy

25-31

Reserved

32

Diassociated for unspecified QoS related reason

33

Disassociated because QoS AP lacks sufficient bandwidth for QoS station

34

Disassociated because excessive number of frames need to be acknowledged, but are not acknowledged due to AP transmissions and/or poor channel conditions

35

Disassociated because STA is transmitting outside the limits of its TXOPs

36

Requested from peer STA as the STA is leaving the BSS (or resetting)

37

Requested from peer STA as it does not want to use the mechanism

38

Requested from peer STA as the STA received frames using the mechanism for which a setup is required

39

Requested from peer station due to timeout

45

Peer station does not support the cipher suite

Version history
Revision #:
1 of 1
Last update:
‎11-18-2010 11:38 PM
Updated by: