One of the more difficult aspects of my job is to be able to troubleshoot a client’s WIFI system. I often get called in when all onsite resources fail to diagnose the issue or the client doesn’t have troubleshooting tools specifically for the tasks required to uncover root causes. While there are several options available […]Read more "Using Tools to Remotely Troubleshoot WLANs – The Windows WLAN Monitor Script"
At WLPC Phoenix 2020 I presented a TEN Talk on this topic. For those that haven’t seen the video, you can view it here. For the record, ten minutes goes by REALLY FAST when you are having fun, which is why I seem a bit rushed starting from about the middle of the video. After […]Read more "Using Ekahau Pro + WLANPI to Derive MOS for VoWIFI"
In 2018 the WLANPi (Twitter: @Wlanpi and Web: wlanpi.com) made its debut at WLPC Phoenix thanks to the hard work of Jerry Olla (Twitter: @jolla) and his team of volunteers. I am a BIG advocate of low cost tools to get things done in my job and this is one powerful little tool. If you […]Read more "ZeroTier and WLANPi – Keeping profiles and keys for re-imaging"
For those readers that don’t know, ECSE stands for Ekahau Certified Survey Engineer. It is designed to teach the use of the Ekahau Site Survey (ESS) software. More information on the program can be found here: Ekahau ECSE. I attended a Pre-conference bootcamp at the Wireless LAN Professionals Conference (WLPC) in Phoenix the weekend of […]Read more "ECSE Bootcamp – A personal view"
Hiding your SSID does nothing for you… There, I have stated it out loud. Look, for all you security types who think hiding the SSID makes it less likely to be noticed, guess what? It will likely lure more people (read: script kiddies) to want to test it out! Security through obscurity is sooooo last […]Read more "To Hide or Not to Hide…Not even a question!"
I admit that I fall into the same trap I bet many in our industry do. You see I work for a VAR that mainly works in Cisco Wireless products and while we are a professional services shop we don’t often stray outside the lines of the usual suspects – mainly Cisco (add Meraki) and […]Read more "Looking at other options is a good thing"
I admit that I had heard about Python, reading about it mostly as a hacker’s toolbox. But thanks to two really cool Wi-Fi experts putting together a boot camp at the Wireless LAN Professionals Conference in Phoenix, AZ last month, I have now been exposed to something that is much, much more. Jake Snyder (Twitter: […]Read more "And I thought Python was a snake…"
The dreaded retry. In wireless networks we can not avoid them. Retries happen for several reasons from non-responsive clients to collisions and more. The retry is an integral part of ensuring the frame gets through. But at what point do retries become a problem and how do we know? This is where we take a […]Read more "Retries…"
I cannot tell you how many times I have been at a client site performing Wi-Fi troubleshooting where the system works fine for most devices but not for the one device type that the client needs for their productivity. The common misconception from the user’s point of view is, “The Wi-Fi here sucks.” Notwithstanding their […]Read more "Understanding Device Roaming Behavior Crucial to Effective Troubleshooting"
I was experimenting with Aruba Networks ability to use their AP units to spectrum analyze the RF and I thought of writing this post with regards to channel bonding capabilities of 802.11n and 802.11ac. I know that many of my clients do not understand how channel bonding works – at least not completely. So, I […]Read more "SpecAn and Channel Bonding"