Author: Kelly Kutz

Have you ever wondered why your Wi-Fi is so bad?

Consider the following picture This is from a hotel I stayed in recently, a Four Points Sheridan, the wireless was one of the worst I had ever experienced.  Take note that each archway represents an Access Point transmitting inside a designated 2.4 GHz channel. When I first saw this, I thought to myself WOW why would anybody do this? Next, I stopped to actually consider that question.  In reality, I understand why this gets done. Many of us were thrust kicking and screaming into wireless from the wired access layer side of networking.  On wired networks, there are no channels just ports and these days all ports are switched which means there is isolation between ports, one user generally does not affect other users. This is simply not the case with wireless. Well not entirely the case. Let’s look at a little history,  the 2.4 GHz band has a sorted and frustrating past. You see it all started with simple technology designed to help make communications more reliable and less susceptible to interference and noise. This technology was in use everywhere. Namely spread spectrum and serial communications, DSSS (Direct-Sequence Spread Spectrum) to be more precise.  The 802.11b standard defined a system that efficiently used the rather limited and narrow ISM (industrial, Scientific and Medical) unlicensed spectrum.  When 802.11b was the standard the above configuration actually worked pretty well. For 802.11b there...

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Configuring and Provisioning Remote Access Point for Aruba Networks

Overview The first question is: Why use a Wireless Remote Access Point to support small remote sites and teleworkers? The answer is: Remote Access Points give you security with versatility.  The Remote AP allows one or more clients to connect remotely to your corporate infrastructure in the same manner they would connect while physically inside the building. This means that the user can utilize any device they are accustomed to using regardless of whether or not there is a VPN client for that device. User training is simple as they do not need different connectivity methods depending on where they connect. The Remote AP takes full advantage of the Aruba OS firewall and user roles for controls, the administrator can configure the exact level of access the user requires while still protecting the network. When using an access point that has multiple wired ports the Remote AP can provide secure wired access back into the corporate network for appliances such as printers and phones. For small remote offices, the Remote AP can provide simple and consistent access to multiple client devices both wired and wireless. Basics of Configuration Configuring an Aruba Networks Controller to support the Remote Access Point (RAP) involves 3 steps: You will first need to create an AP Group with the Virtual AP profile (this becomes the SSID broadcast by the RAP) and specific settings to...

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RF test options in Aruba Networks Controller

Troubleshooting Wi-Fi client quality issues can be very frustrating, users have no idea what the details are and have no idea what to ask for. Normally you end up with a description of the problem that simply states my device <brand name here> is slow. Or your network is terrible. Beyond that it is up to you to determine what may be going on and what the issue is. Once you have narrowed the issue down to a single client the RF test tools can help you gain valuable insight into what issues may be impacting the client’s experience....

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