Clients had an unusual number of MAC authentication failures

The Clients had an unusual number of MAC authentication failures insight can be accessed from the Global, Site, Access Points, and Clients context. This insight provides information on excessive MACMedia Access Control. A MAC address is a unique identifier assigned to network interfaces for communications on a network. authentication failures observed in the network and is categorized under connectivity since the users are unable to connect to the Wi-FiWi-Fi is a technology that allows electronic devices to connect to a WLAN network, mainly using the 2.4 GHz and 5 GHz radio bands. Wi-Fi can apply to products that use any 802.11 standard. network. It also helps in order to identify the rogue users in a network. This insight displays the following information:

Insight Summary

Time Series Graph

Cards

Insight Summary

The insight summary provides the following details:

Reason—Displays the possible causes for which the failure occurred.

Recommendation—Displays the recommendation against each failure to resolve the same.

Failures—Displays the exact number and percentage of failures that occurred against each failure reason.

Time Series Graph

This bar graph displays the number of MAC authentication failures that occurred during the selected time period. Hover your mouse over each bar graph to see the exact number of failures. The following graph shows data trend for 3 hours in a day.

Figure 1  MAC Authentication Failure Data

Cards

The cards vary based on the context that you access the insight from. Click one of the cards to view further details:

Table 1: Cards Context

Cards	Context
Site	Global
Access Point	Global, Site, Client
Client	Global, Site, Device

Site

Lists the number of sites that experienced MAC authentication failures in the network. Click the arrow to view a pictorial graph with the Top 5 impacted sites. Click the number displayed on the Site card, to view a detailed description of the impacted sites:

Site—Name of the site impacted by the insight.

Failures—Number of failures occurred in each site.

Total—Total number of MAC authentication in each site.

Access Point

Lists the number and the details of APs that faced the MAC authentication failures in the network. Click the arrow to view a pictorial graph of the Top 5 impacted access points. Click the Access Point drop-down list to view the following:

SSID—Pictorial graph of the percentage of MAC authentication failures sorted by SSIDsService Set Identifier. SSID is a name given to a WLAN and is used by the client to access a WLAN network..

Model—Pictorial graph of the percentage of MAC authentication failures sorted by AP models.

FW Version—Pictorial graph of the percentage of MAC authentication failures sorted by AP firmware version.

Click the number displayed on the Access Point card, to view the detailed description of the impacted access points:

Name—Name of the access points and link to the Access Point Details page.

MAC—MAC address of the AP and link to the Access Point Details page.

Failures—Number of failures occurred in each AP.

Total—Total number of MAC authentication in each AP.

Serial—Serial number of the AP

IP—IP address of each AP.

Model—Model number of each AP.

FW Version—Version of the firmware running on each AP.

Site—Name of the site where the AP resides.

Client

Lists the MAC address, name, host name, and auth ID of clients that failed MAC authentication. Click the arrow to view the pictorial graph of the Top 5 impacted clients. Click the number displayed on the Client card, to view a detailed description of the impacted clients:

Name—Name of the impacted client.

MAC—MAC address of the client and link to the Client Details page.

Failures—Number of failures occurred in each client.

IP—IP address of each client.

OS—OS type of the device.