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I currently have a Cisco 4402, with about 10 APs, all 1142s, connected. &nbsp;This morning I discovered that several of the APs were not connecting to the controller. &nbsp;I could ping the APs, so I know it's not a network connectivity issue; I could also access the controller and see the other APs were connected and functioning.<br />
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After playing with one of the non functioning APs for a bit and failing to get it to connect I decided to reboot the controller. &nbsp;After rebooting the controller none of the APs will connect now. &nbsp;I can log into the controller and it's configuration looks fine.<br />
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In looking at the controller statistics I can see all the APs that have joined at some point, after clicking on one of them I can this this:<br />
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Feb 24 10:46:55.075 - Received Discovery request and sent response<br />
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Last Successful Attempt Time: Feb 24 10:46:55.075<br />
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These times were just a few minutes ago.<br />
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Just found this in the Message Logs, there are multiple of these for the different APs<br />
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*spamReceiveTask: Feb 24 11:00:54.909: %DTLS-3-HANDSHAKE_FAILURE:<wbr /> openssl_dtls.c:631 Failed to complete DTLS handshake with peer 192.168.21.38 for AP e8:ba:70:ee:dc:41 <br />
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Not sure what to try now, any help would be appreciated, thanks.
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I currently have a Cisco 4402, with about 10 APs, all 1142s, connected.  This morning I discovered that several of the APs were not connecting to the controller.  I could ping the APs, so I know it's not a network connectivity issue; I could also access the controller and see the other APs were connected and functioning.

After playing with one of the non functioning APs for a bit and failing to get it to connect I decided to reboot the controller.  After rebooting the controller none of the APs will connect now.  I can log into the controller and it's configuration looks fine.

In looking at the controller statistics I can see all the APs that have joined at some point, after clicking on one of them I can this this:

Feb 24 10:46:55.075 - Received Discovery request and sent response

Last Successful Attempt Time: Feb 24 10:46:55.075

These times were just a few minutes ago.

Just found this in the Message Logs, there are multiple of these for the different APs

*spamReceiveTask: Feb 24 11:00:54.909: %DTLS-3-HANDSHAKE_FAILURE: openssl_dtls.c:631 Failed to complete DTLS handshake with peer 192.168.21.38 for AP e8:ba:70:ee:dc:41 

Not sure what to try now, any help would be appreciated, thanks.

Issue with Cisco 4402 and 1142 LAPs

Cisco PIX is a dedicated hardware firewall appliance; the Cisco Adaptive Security Appliance (ASA) is a firewall and anti-malware security appliance that provides unified threat management and protection the PIX does not. Other Cisco devices and systems include routers, switches, storage networking, wireless and the software and hardware for PIX Firewall Manager (PFM), PIX Device Manager (PDM) and Adaptive Security Device Manager (ASDM).

Cisco

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Wireless Networking

Wireless networking is a method by which homes, telecommunications networks and enterprise (business) installations avoid the costly process of introducing cables into a building, or as a connection between various equipment locations. Wireless telecommunications networks are generally implemented and administered using radio communication. This implementation takes place at the physical level (layer) of the OSI model network structure. The key hardware components of a wireless computer network include adapters, routers and access points, antennas and repeaters.