Clients had DHCP server connection problems
The insight can be accessed from the , , , and context. This insight provides information on excessive client to AP DHCPDynamic Host Configuration Protocol. A network protocol that enables a server to automatically assign an IP address to an IP-enabled device from a defined range of numbers configured for a given network. failures observed in the network. This insight occurs when 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. clients attempt to acquire a DHCP IP address multiple times but fails to do so. insight is categorized under connectivity since the users fail to get an IP address and are unable to connect to the Wi-Fi network. It displays the following information:
Insight Summary
The insight summary provides the following details:
—Displays the possible causes for which the failure occurred.
—Displays the possible recommendation against each failure to resolve the same.
—Displays the exact number and percentage of failures that occurred against each failure reason.
Time Series Graph
This bar graph displays the number of DHCP 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 the 3 hours in a day.
Figure 1 High DHCP 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:
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Cards |
Context |
|---|---|
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Global |
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Global, Site, Device, Client |
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Global, Site, Client |
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Global, Site, Device |
Site
Lists the number of sites that experience DHCP server connection problems in the network. Click the arrow 
to view a pictorial graph with the impacted sites. Click the number displayed on the card, to view a detailed description of the impacted sites:
—Name of the site impacted by the insight.
—Number and percentage of failures occurred in each site.
—Total number of DHCP requests.
Server
Lists the number of DHCP servers involved in this insight. Click the arrow to view the pictorial graph of the impacted sites. Click the number displayed on the card, to view a detailed description of the impacted servers:
—Name of server impacted by this insight.
—Number of failures occurred in each server.
—Total number of DHCP requests.
Access Point
Lists the number and the details of the DHCP server connection problems observed in an AP. Click the arrow to view a pictorial graph of the impacted access points. Click the drop-down list to view the following:
—Pictorial graph of the percentage of DHCP 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..
—Pictorial graph of the percentage of DHCP failures sorted by AP models.
—Pictorial graph of the percentage of DHCP failures sorted by AP firmware version.
Click the number displayed on the card, to view the detailed description of the impacted access points:
—Name of the access points and link to the page.
—MACMedia Access Control. A MAC address is a unique identifier assigned to network interfaces for communications on a network. address of the AP and link to the page.
—Number of failures occurred in each AP.
—Serial number of the AP
—IP address of each AP.
—Model number of each AP.
—Version of the firmware running on each AP.
—Site name of the AP where the failure occurred.
Client
Lists the MAC address, host name, and auth ID of clients that failed DHCP handshake. Click the arrow to view the pictorial graph of the impacted clients. Click the number displayed on the card, to view a detailed description of the impacted clients:
—Name of the impacted client.
—MAC address of the client and link to the page.
—Number of failures occurred in each client.
—Total number of DHCP requests.
—IP address of each client.
—OS type of the device.
