Specifications

OmniAccess Reference: AOS-W System Reference
592 Part 031652-00 May 2005
Client finds AP, but cannot associate
After a client has located one or more APs supporting the desired ESSID, it
must associate to that AP. Association is a four-step process consisting first
of 802.11 authentication (not to be confused with 802.1x or VPN
authentication) followed by association. Four frames are exchanged on the
wireless network during association, as shown in the figure below.
FIGURE 27-3 Association Process
The figure below shows a packet capture of a normal authenticate/associate
sequence. Detailed packet capture data can be found in Appendix A.
FIGURE 27-4 Association Process Packet Capture
If the client and AP are configured differently, association will typically fail.
Very little information is given to the user when an association fails, so most
troubleshooting must be done from the network side. The most likely cause
for an authentication or association failure is client misconfiguration.
Authenticate
Authenticate Response
Associate
Associate Response
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