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Cannot connect to the Access Point due to mismatch in SSID




Cannot connect to the Access Point due to mismatch in SSID



The SSID is a unique identifier that wireless networking devices use to establish and maintain wireless connectivity. Multiple access points on a network or sub-network can use the same SSIDs. To establish a Wireless connection between the Wireless client and the Access Point the SSID configured on the Access point must match with the SSID configured on the Wireless clients.


If the Wireless client cannot connect to the AP, check if the SSID configured is the same on both the AP and client. SSIDs are case sensitive and should not contain any spaces.


Creating an SSID

Beginning in privileged EXEC mode, follow these steps to create an SSID:






Step 1

configure terminal

Enter global configuration mode.

Step 2

interface dot11radio 0

Enter interface configuration mode for the radio interface.

Step 3

ssid ssid-string

Create an SSID and enter SSID configuration mode for the new SSID. The SSID can consist of up to 32 alphanumeric characters. SSIDs are case sensitive.

Note You can include spaces in an SSID, but be careful not to add spaces to an SSID accidentally, especially at the end of an SSID.

Step 4

authentication client
username username
password password

(Optional) Set an authentication username and password that the bridge uses to authenticate to the network.

Step 5

accounting list-name

(Optional) Enable RADIUS accounting for this SSID. For list-name, specify the accounting method list. Click this link for more information on method lists:/en/US/customer/docs/ios/12_2/security/configuration/guide/scfacct.html#xtocid2

Step 6

vlan vlan-id

(Optional) Assign the SSID to a VLAN on your network. On your bridge, you should assign the SSID to the native VLAN.

Step 7


Designate the SSID as your bridge's infrastructure SSID. The root bridge allows associations only from bridges that use this SSID. You must enter this command for the SSID on each non-root bridge.

Step 8


Return to privileged EXEC mode.

Step 9

copy running-config startup-config

(Optional) Save your entries in the configuration file.



Note You use the ssid command's authentication options to configure an authentication type for the SSID. See "Configuring Authentication Types," for instructions on configuring authentication types.


Use the no form of the command to disable the SSID or to disable SSID features.


This example shows how to:

Name an SSID

Configure the SSID for RADIUS accounting

Assign the SSID to the native VLAN

Designate the SSID as the infrastructure SSID


bridge# configure terminal

bridge(config)# interface dot11radio 0

bridge(config-if)# ssid bridgeman

bridge(config-ssid)# accounting accounting-method-list

bridge(config-ssid)# vlan 1

bridge(config-ssid)# infrastructure-ssid

bridge(config-ssid)# end


Problem Type

Device cannot associate



Base Station

Workgroup bridges

Access point


WLAN adapters (wireless card) / ACU (Aironet Client Utility)


Security Options




Cisco AP:


The 340/350 Series - Radio Service Set ID (SSID)

The 1100 Series - Creating an SSID

The 1200 Series with VxWorks - Radio Service Set ID (SSID)

The 1200 Series with Cisco IOS  - Creating an SSID



The 340/350 Series - Radio Service Set ID (SSID)

The 1400 Series - Configuring SSIDs

Client Adapters:

Linux - Setting the Client Name and SSID

MacOS - Configuring Basic Wireless LAN Parameters for MacOS 9 or MacOS X

MS DOS - Installing the Software and Basic System Parameters

MS Windows - Setting System Parameters

MS Windows CE - Configuring Your Client Adapter


Workgroup Bridges:

The 340/350 Series - Establishing an SSID