You are setting up a Cisco access point in repeater mode with a non-Cisco point as the parent and you use this interface configuration on your Cisco access point.
interface Dot11Radio0 no ip address no ip route-cache no ip route-cache ! ssid my WIFInetwork ! station-role repeater bridge-group 1 subscriber-loop-control bridge-group 1 block-unknown-source no bridge-group 1 source-learning no bridge-group 1 unicast-flooding bridge-group 1 spanning-disabled You are getting the following error message.
Which reason for this issue is true? %DOT11-4-CANT_ASSOC: Interface Dot11Radio0, cannot associate.
NO aironet Extension IE.
Click on the arrows to vote for the correct answer
A. B. C. D.B.
Repeaters and bridges have to be the same manufacturer because there are some protocols that other manufacturers won't accept.So Cisco Aironet to Cisco Aironet will work.Cisco Aironet to Cisco Linksys (and other manufacturers) will NOT workReference: Reference: https://supportforums.cisco.com/discussion/11308521/cisco-ap-1141-repeater-hp-procurve-problems.
The error message "%DOT11-4-CANT_ASSOC: Interface Dot11Radio0, cannot associate" indicates that the Cisco access point is not able to associate with its parent access point in repeater mode. This error can occur due to various reasons, and we need to troubleshoot to find the root cause. The possible reasons and their explanations are:
A. The parent AP MAC address has not been defined: In repeater mode, the Cisco access point needs to know the MAC address of its parent access point. We can configure the parent access point MAC address using the "station-role repeater parent" command. If we have not defined the parent access point MAC address, then we will get the above error message. Therefore, we need to check if we have configured the parent access point MAC address or not.
B. Repeater mode only works between Cisco access points: This statement is not entirely true. The repeater mode can work with non- Cisco access points as well. However, there are some compatibility issues with non- Cisco access points, and we need to make sure that both access points support the same standards and protocols. We also need to configure some additional settings for non- Cisco access points, such as enabling the "dot11 extension aironet" command under the interface Dot11Radio0. If we have not enabled this command for non- Cisco access points, then we can get the above error message.
C. When repeater mode is used, unicast-flooding must be enabled to allow Aironet IE communications: This statement is partly true. In repeater mode, we need to enable the unicast-flooding command to allow some specific packets, such as Aironet IE communications, to be forwarded to the parent access point. However, this command is not mandatory to make the repeater mode work. If we have not enabled this command, then we may face some issues with Aironet IE communications, but we will not get the above error message.
D. "dot11 extension aironet" is missing under the interface Dot11Radio0 interface: This statement is partly true. The "dot11 extension aironet" command is required for non- Cisco access points to work in repeater mode with Cisco access points. If we have not enabled this command, then we may face issues with non- Cisco access points, but we will not get the above error message.
In conclusion, the possible reasons for the "%DOT11-4-CANT_ASSOC: Interface Dot11Radio0, cannot associate" error message are A and D. We need to check if we have configured the parent access point MAC address and enabled the "dot11 extension aironet" command under the interface Dot11Radio0 for non- Cisco access points.