Table of Contents
- Coloring Rules
- Physical and Logical Grouping
- AP Aliasing
- Signal Strength Threshold
- Copy to Clipboard
- Export a Wi-Spy Recording
- Network Table Terms
inSSIDer Office is a WiFi optimization and troubleshooting tool. It scans for wireless networks with your WiFi adapter, so you can visualize their signal strengths, and what channels they are using. It also lists a lot of useful information about each network.
inSSIDer Office also listens for raw radio frequency activity with your Wi-Spy Mini, which is a special device called a "spectrum analyzer". This helps us see how busy each channel really is (not just how many networks are on a channel).
The WiFi adapter gives us information about nearby wireless networks, while the Wi-Spy Mini gives us information about channel activity and interference.
inSSIDer Office is great for:
- Picking the best channel for your access point
- Performing channel-planning on a multi-AP network
- Avoiding interference
- Measuring channel use (utilization)
- Performing coverage checks
- Optimizing wireless networks
inSSIDer Office is cross-platform, which means that it is very similar on Windows and OS X. The OS X version is currently in Beta, so it is missing a few features that you would find in the Windows version.
inSSIDer Office for Windows and inSSIDer Office Beta for OS X are similar, but not identical. Yet.
Spectrum Analysis with Wi-Spy Mini
Wi-Spy Mini supplements your WiFi adapter with spectrum analysis data, giving you a lot more details about is happening in your environment. Learn more here.
A Wi-Spy Mini, Wi-Spy 2.4x, or Wi-Spy DBx is strongly recommended to unlock inSSIDer Office's full potential.
Networks Table, Details Pane, and Networks Graph
inSSIDer Office shows information in three different ways:
|Shows a list of all of the nearby wireless access points, wireless networks, or channels.
|Shows details about the selected access point, wireless network, or channel. Click on a line item in the Networks Table to reveal the associated Details Pane.
|Shows a graphical representation of nearby wireless networks, what their signal strengths are, and how they share channels and overlap with each other.
Open and Close the Details Pane
To open the Details Pane in any grouping mode, click on the associated line item. To close the pane, click the X button.
Physical, Logical, and Channel Grouping
inSSIDer Office also groups access points, networks, and channels in three different ways:
|Groups virtual SSIDs on the same access point together
|Groups access points with the same SSID together
|Groups channels together
Note: Each group has a dedicated section below.
inSSIDer Office links networks, access points, and channels together with the Network Drilldown button, and can be found in most tables. Click on the Network Drilldown button to visit the associated item.
inSSIDer Office draws a network shape in the 2.4 and 5 GHz channels graph for every network it hears with your WiFi adapter. Each network shape is centered over the channel that it is on, and the height of the shape shows how loud the network is (represented by amplitude).
802.11b network (max rate of 2 or 11 Mbps) will be drawn with a curved top.
802.11 a/g/n networks will be drawn with a flat top.
inSSIDer Office lists all of the networks that it can hear with your WiFi adapter.
Above the Networks Table, you'll find the filter bar. You can filter by SSID, MAC Address, Channel, Signal Strength, Security, and Phy Type.
Type in the data you wish to filter by, and hit the enter key to apply the filter. Clicking the X next to your filter will remove it.
inSSIDer Office color-codes all networks and network groups. The color scheme is consistent throughout in swatches next to network names, network shapes, selected items, and details fields.
Unselected networks with no grouping applied, most networks get their own color.
Selected Network Mode
Shows relationships between networks, depending on which network is selected.
|A network that partially overlaps with your network, causing adjacent-channel interference (worst)
|A network that shares a channel with your network (better)
|Selected Physical (radio) or Logical (ESSID) group
|Selection within a Physical or Logical group
|Unselected network that doesn't relate to or overlap with your selected network
inSSIDer Office groups access points Physically (multiple SSID's on one access point) or Logically (multiple access points with the same SSID, making them all part of one ESSID).
With Physical Grouping, all virtual SSID's on the same radio are grouped together. Each line item then represents one physical radio on an access point that is the host of more than one SSID.
Physical Grouping Mode works best when you are working with a single access point. A common use case scenario for this mode might be picking the best channel for a home wireless network.
Radio Details Pane
The Radio Details Pane displays:
|Current signal strength in dBm
|Current channel of the access point
|The channel that inSSIDer recommends for the best performance
|Strongest Overlapping Radio
|The loudest radio that is on an adjacent (partially overlapping) channel
|Strongest Co-Channel Radio
|The loudest radio that is sharing the same channel as your network
Radio Details Table
The Radio Details Table lists each virtual SSID on the selected radio, along with each respective MAC Address and Security type.
Signal Strength Over Time Graph
Towards the bottom, you can view the signal strength of your radio over time (blue), as well as the signal strength of the strongest overlapping radio (red), and the strongest co-channel radio (yellow).
With Logical Grouping, all access points with the same SSID are grouped together.
This mode works best when your network has more than one access point. A common use case scenario for ESSID Grouping is ensuring that your corporate network provides adequate or continuous coverage throughout a building.
Logical Group Table
Each access points that belongs to the Logical Group (or ESSID Group) is listed in the table.
The Logical Group Table displays:
|Either the MAC address, AP name (Cisco and Aruba only), or custom AP Alias. Click the Pencil icon to set your custom AP Alias.
|Wireless channel that the access point is on.
|802.11 protocols supported by the access point.
|The security protocol that the access is configured to support.
|Minimum supported data rate. Slower data rates fly farther, but cause more channel utilization.
|Maximum supported data rate.
|The amplitude level (loudness or signal strength) of the wireless network as seen by your computer’s wireless adapter.
|The higher the link score, the better. The amount of partially overlapping networks, amount of same-channel networks, and RF activity in the channel can all negatively affect the Link Score.
Signal Strength Over Time Graph
Towards the bottom, you can view the signal strength of all of the access points in your Logical Group. The colors are matched with the Logical Group Table, but you can click on a network in the table to highlight it in the graph.
Channels mode focuses on the health of each WiFi channel.
Note: The Channels mode button will be greyed out if a Wi-Spy Mini, Wi-Spy 2.4x, or Wi-Spy DBx isn't connected, since the tab relies on spectrum analysis data from a Wi-Spy.
The Channels table shows:
|How often activity is occurring on the channel, or how often the channel is being "Utilized". Only one wireless device can use a channel at a time, so you want channel utilization to be as low as possible.
|Amount of wireless networks on the same channel. The fewer, the better.
|Maximum signal strength of on-channel networks. Analogous to the yellow signal strength over time graph in other parts of inSSIDer.
|Amount of wireless networks that are partially overlapping with the channel. The fewer, the better. Partially overlapping networks cause one of the worst types of interference.
|Max Overlapping Signal
|Maximum signal strength of overlapping networks. Analogous to the red signal strength over time graph in other parts of inSSIDer.
Channel Details Pane
Select a channel to open the Channel Details Pane, where you can learn more about it.
Utilization Over Time Graph
The Utilization Over Time Graph shows how busy a channel is over time. The higher the utilization, the less time is left available for WiFi devices to talk.
The Channels Graph uses spectrum analysis data from the Wi-Spy to show raw radio frequency activity in the band. This activity can be made by any wireless device, WiFi or otherwise.
You can see which channel devices are talking on (where), how loud they are talking (height), and how often they are talking (intensity of the color).
In addition to detecting Cisco and Aruba AP names, inSSIDer Office allows you to give access points custom names. Click the Pencil icon next to the AP's name or MAC address to give it a custom name.
The Signal Strength Threshold feature displays a dotted lone across the Channels Table and Signal Strength Over Time graphs.
The threshold can be changed in File > Settings. Find out more about acceptable WiFi signal strengths here.
Coverage Check in Physical Mode
Once the threshold has been set, select a network in Physical Mode, and walk the desired coverage are while watching the Signal Strength Over Time Graph. The the signal strength line falls below the threshold, then you may have a coverage problem to address.
Coverage Check in Logical Mode
Logical Mode can be used to ensure that every location in the desired coverage area is covered by one or more access points.
Each respective table and graph has a Copy to Clipboard button, usually in the upper righthand corner. Graphs are copied out as an image, and tables are copied out as plaintext, ready to be pasted into a word processor or spreadsheet.
With inSSIDer Office, you can export a Wi-Spy recording file, which can be opened in Chanalyzer.
Learn how to use this feature here: Export a Wi-Spy Recording with inSSIDer Office
Common acronyms and technical terms that inSSIDer Office uses:
802.11 – The letters displayed in this column inform you of the 802.11 protocols in use by that Access Point.
Access Point - This is the hardware that WiFi devices wirelessly connect to. Sometimes these will function as a router, and are often referred to as a wireless router.
Channel – Each wireless network operates on a specific WiFi channel. Channels 1-14 are in the 2.4 GHz frequency range, while channels 36-165 are in the 5 GHz range. For best performance in the 2.4 GHz band we recommend channels 1, 6, and 11.
* (Asterisk) - In ESSID grouping, an asterisk/star indicates that the channel is 40 MHz wide.
Co-Channel Network - Every access point on the same channel cooperates and negotiates opportunities to transmit. This can slow down performance for every connected device.
MAC Address - This is a unique identifier for a wireless network or BSSID.
Overlapping Network - Stations and access points on an overlapping channels talks over each other on overlapping frequencies. This causes transmission corruption and slow performance for connected devices. Overlapping networks have a more severe impact on performance than co-channel networks.
Security – inSSIDer will display networks utilizing the following standard security settings: Open (Unsecured), WEP, WPA-Personal, WPA-Enterprise, WPA2-Personal, and WPA2-Enterprise.
Open Lock - Indicates a network that is unsecured. None of the data on the network is encrypted.
Broken Lock - WEP, which is a very broken and insecure encryption method. This encryption method can be broken into in a matter of minutes.
Closed Lock - WPA or WPA2 wireless security encryption. These are the best security options available today. We recommend WPA with WPS disabled, which is the most secure.
Signal - The amplitude level of the wireless network as seen by your computer’s wireless adapter, also known as RSSI or “Received Signal Strength Indication”. inSSIDer provides a line graph representing the signal strength over time.
SSID - Abbreviation of “Service Set Identifier”, which is the name an 802.11 wireless network uses to identify itself.
Link Icon - Indicates which access point you are currently connected to. This icon also appears within an ESS, so you can see which specific access point you are connected to on your network.