David Coleman

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David Coleman is a wireless mobility consultant, public speaker, and trainer. For the last twenty years, David has instructed IT professionals from around the globe in enterprise WLAN design, WLAN security, WLAN administration and WLAN troubleshooting. In his spare time, David writes white papers, blogs, and books about enterprise Wi-Fi networking. David is the co-author of Sybex Publishing’s Certified Wireless Network Administrator (CWNA) Study Guide and numerous other books about Wi-Fi. David is the Senior Product Evangelist for Aerohive Networks and is CWNE #4.

802.11ax Frame Aggregation Enhancements

The primary goal of both 802.11n and 802.11ac was to provide high throughput and bigger data rates. However, frame aggregation is one key aspect of 802.11n/ac that did enhance airtime efficiency. Frame aggregation is a method of combining multiple frames into a single frame transmission. Fixed MAC layer overhead and medium contention overhead are reduced, […]

Why is Upgrading Wi-Fi Clients/Devices Important?

Chris and I discuss the importance of upgrading end user devices when upgrading your enterprise WLAN network in a recent video.

Enterprise Wi-Fi Configuration Bells and Whistles

In this video,  Chris Harkins, Sr. Technical Instructor and I talk about configuration features like Load Balancing and when (or when not) to use them.

How Many SSIDs Should An Enterprise Wi-Fi Network Have?

David Coleman, CWNE#4 and Sr. Product Evangelist, and Chris Harkins, Sr. Technical Instructor discuss best practives on SSID design. If you’ve ever wondered why you shouldn’t use 16 SSIDs, be sure to watch this video.

Introducing Industry’s First Family of Enterprise 802.11ax Access Points

Abby Strong, VP of Products & Marketing and David Coleman, Aerohive Product Evangelist and CWNE#4, introducing industry’s first family of enterprise 802.11ax access points. Aerohive intends to deliver three new models in mid-2018. The new 802.11ax Wi-Fi access points – AP630, AP650, and AP650X – are 802.11ax-capable as well as being fully compatible with existing […]

What Benefits Does 802.11ax Bring for IT Administrators?

David Coleman (CWNE#4) discusses 802.11ax in this latest video.

Troubleshooting Connectivity Problems With VLAN Probe (Pro Tip: It’s not always the Wi-Fi)

David Coleman explains how to use the VLAN probe in HiveManager NG to troubleshoot users not being assigned the correct IP for their device.

Wi-Fi Career Pro Tip: Learn 802.11 Frame Analysis

What is one of the smartest things Wi-Fi admins can do? Learn 802.11 frame analysis. These two videos by a couple of WLAN Pros will help you get started.

British Invasion of Aerohive CWNEs

Two new Aerohive employees (eleven total) have earned elite CWNE status. Read to find out who they are and how they got here.

The New CWSP Study Guide Is Out

After many months of work, the 2nd edition of the Certified Wireless Security Professional (CWSP) Study Guide is available.