Troubleshooting DTLS Handshake Error Joining Cisco 2702i Access Point to 9800 Wireless Controller

Recently I tried to join a Cisco 2702i access point to a 9800-CL wireless controller but found an issue that needed to be fixed prior to it joining successfully. I also recently joined a Catalyst 9115 access point right out of the box and experienced no issue at all, so my theory is that the 2702i had config still on it from when it was previously joined to a 5508 WLC. In this post I’ll go through the few steps I took to fix the issue and successfully join the 2702i to the 9800-CL.

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Deploying and Configuring the Cisco 9800 Virtual Wireless Controller for the First Time

Deploying the new Cisco 9800-CL wireless controller is fast and easy, and by using the built-in workflows, a new wireless network can be deployed in only a few minutes. In this post, I’ll review how to deploy the virtual wireless LAN controller in VMware ESXi and stand up a very simple WLAN. We’ll also take a look at some potential gotchas and some noteworthy differences between how the new WLC is configured compared to the AireOS WLC.

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Hopeful with a Dash of Skepticism: Cisco 9800 Wireless Controllers

Only a few years ago, Cisco tried their hand at a converged access wireless platform with, among other devices, the Cisco 5760 Wireless LAN Controller. To this day, I have nightmares about that box. It wasn’t fully functional, and it had huge code issues. Today, in spite of AireOS being a stable, highly functional, and well-known WLC platform, Cisco is trying it again with a range of WLCs in the 9300 and 9800 series.

However, will this brave attempt prove to have the same fate as the 5760?

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Locating Wireless Clients and Location History in Cisco Prime with CMX

Locating a wireless client in real time and viewing its location history in Cisco Prime Infrastructure is a little bit different with CMX than with MSE. In this post we’ll walk through the few steps to locate a wireless client among all your maps and then view its location history.

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