First Published: March 28, 2023

Release Notes for Cisco Embedded Wireless Controller on Catalyst Access Points, Cisco IOS XE Dublin 17.11.x

Introduction to Cisco Embedded Wireless Controller on Catalyst Access Points

The Cisco Embedded Wireless Controller on Catalyst Access Points is a version of the Cisco IOS XE-based controller software on Catalyst access points. In this solution, a Catalyst access point (AP) that is running the Cisco Embedded Wireless Controller on Catalyst Access Points software, is designated as the primary AP. Other APs, referred to as subordinate APs, associate to this primary AP.

The Cisco Embedded Wireless Controller on Catalyst Access Points provides enterprise-level WLAN features while maintaining operational simplicity and affordability. This solution is targeted at small and medium-sized business (SMB) customers or distributed enterprises, and can be run at single site deployments.

  • The controllers come with high availability (HA) and seamless software updates. This keeps your services on always, both during planned and unplanned events.

  • The deployment can be managed using a mobile application, Cisco Digital Network Architecture (DNA) Center, Netconf/Restconf, web-based GUI, or CLI.

What's New in Cisco Embedded Wireless Controller on Catalyst Access Points, Cisco IOS XE Dublin 17.11.1

Table 1. New and Modified Software Features

Feature Name

Description and Documentation Link

Background Scanning and MAP Fast Ancestor Find Mode

The Background Scanning and MAP Fast Ancestor Find Mode feature updates the child MAPs about their neighbors across all the channels. This feature also helps child MAPs to switch to a neighbor of any channel, and use that neighbor as the next parent for uplink. Background scanning allows MAPs to save time during the scan-and-seek phase while looking for a new parent.

The following command is introduced:

  • map-fast-ancestor-find

For more information, see the chapter Mesh Access Points.

Built-in Captive Portal Improvements

This release introduces support for special characters in the login portal banner title and banner text. The number of characters supported on the banner text has been doubled to 400.

The following command is introduced:

  • exec-character-bits

For more information, see the chapter Web-Based Authentication.

Convert Redundant 2.4-GHz Radios to Monitor Mode

From this release, you can select the redundant dual-band radios in a network to operate in monitor only mode.

For more information, see the chapter Cisco Flexible Radio Assignment.

Jumbo Frame Support for RADIUS Packets

This release supports higher RADIUS packet fragmentation. The fragmentation size is increased to 9000 bytes.

For more information, see the chapter Multiple Authentications for a Client.

Multiauthentication Combination of 802.1X and Local Web Authentication

This feature supports the merging of applied policies during the multiauthentication of 802.1X or MAC Authentication Bypass and Local Web Authentication.

The following command is introduced:

  • consent activation-mode merge

For more information, see the chapter Security.

New AAA Command

A new command is introduced to display brief information about AAA servers:

  • show aaa server brief

For more information, see the Command Reference guide.

Reload Reason History

The Reload Reason History feature tracks the controller reload reason. Using the show version command and Network Configuration Protocol (NETCONF), you can view the reload reason history, which is useful for troubleshooting and serviceability.

RFID Hardening

The show wireless rfid detail command has been enhanced to display information about the neighbouring APs.

Secure Data Wipe

This feature allows you to securely erase files from the file system of Cisco Access Points.

For more information, see the chapter Secure Data Wipe.

User-Configurable Ethernet Port LEDs

In this release, the Ethernet port LEDs in APs are enabled or disabled (switched ON or OFF) as per the system LED. For example, if the system LED is ON, the Ethernet LED will also be ON.

For more information, see the chapter LED States for Access Points.

RAP Ethernet Daisy Chain with WSTP

RAP Ethernet Daisy Chain feature is enhanced in this release. WSTP hello message is used for root port detection to support flexible topology.

A dedicated command is introduced to enable this feature: rap-eth-daisychain.

The following command is introduced to configure primary ETH port: ap name mesh backhaul ethernet.

Wireless Client Latency Statistics

From this release onwards, the wireless client latency statistics allow you to view a client's statistics using the client's MAC address.

The following command is introduced:

  • show wireless client mac-address stats latency
Table 2. New and Modified GUI Features

Feature Name

GUI Path

Convert Redundant 2.4-GHz Radios to Monitor Mode

  • Configuration > Radio Configurations > RRM > FRA

Background Scanning and MAP Fast Ancestor Find Mode

  • Configuration > Wireless > Mesh > Profiles

User-Configurable Ethernet Port LEDs

  • Configuration >Wireless > Access Points

Interactive Help

The Cisco Catalyst 9800 Series Wireless Controller GUI features an interactive help that walks you through the GUI and guides you through complex configurations.

You can start the interactive help in the following ways:

  • By hovering your cursor over the blue flap at the right-hand corner of a window in the GUI and clicking Interactive Help.

  • By clicking Walk-me Thru in the left pane of a window in the GUI.

  • By clicking Show me How displayed in the GUI. Clicking Show me How triggers a specific interactive help that is relevant to the context you are in.

    For instance, Show me How in Configure > AAA walks you through the various steps for configuring a RADIUS server. Choose Configuration> Wireless Setup > Advanced and click Show me How to trigger the interactive help that walks you through the steps relating to various kinds of authentication.

The following features have an associated interactive help:

  • Configuring AAA

  • Configuring FlexConnect Authentication

  • Configuring 802.1x Authentication

  • Configuring Local Web Authentication

  • Configuring OpenRoaming

  • Configuring Mesh APs


Note

If the WalkMe launcher is unavailable on Safari, modify the settings as follows:

  1. Choose Preferences > Privacy.

  2. In the Website tracking section, uncheck the Prevent cross-site tracking check box to disable this action.

  3. In the Cookies and website data section, uncheck the Block all cookies check box to disable this action.

Supported Cisco Access Point Platforms

The following Cisco access points are supported in the Cisco Embedded Wireless Controller on Catalyst Access Points network. Note that the APs listed as primary APs can also function as subordinate APs.

Table 3. Cisco APs Supported in Cisco Embedded Wireless Controller on Catalyst Access Points

Primary AP

Subordinate AP

Cisco Catalyst 9115 Series

Cisco Catalyst 9117 Series

Cisco Catalyst 9120 Series

Cisco Catalyst 9124AXE/I/D

Cisco Catalyst 9130

Cisco Catalyst 9105AXI

Cisco Aironet 1540 Series

Cisco Aironet 1560 Series

Cisco Aironet 1815i

Cisco Aironet 1815w

Cisco Aironet 1830 Series

Cisco Aironet 1840 Series

Cisco Aironet 1850 Series

Cisco Aironet 2800 Series

Cisco Aironet 3800 Series

Cisco Aironet 4800 Series

Cisco Catalyst 9115 Series

Cisco Catalyst 9117 Series

Cisco Catalyst 9120 Series

Cisco Catalyst 9124AXE/I/D

Cisco Catalyst 9130

Cisco Catalyst 9105AXW

Cisco Catalyst 9105AXI

Cisco Catalyst Industrial Wireless 6300 Heavy Duty Series Access Points

Cisco 6300 Series Embedded Services Access Points
Table 4. Image Types and Supported APs in Cisco Embedded Wireless Controller on Catalyst Access Points

Image Type

Supported APs

ap1g4

Cisco Aironet 1810 Series

Cisco Aironet 1830 Series

Cisco Aironet 1850 Series

ap1g5

Cisco Aironet 1815i

Cisco Aironet 1815w

Cisco Aironet 1540 Series

Cisco Aironet 1850 Series

ap1g6

Cisco Catalyst 9117 Series

ap1g6a

Cisco Catalyst 9130

Cisco Catalyst 9124AXE/I/D

ap1g7

Cisco Catalyst 9115 Series

Cisco Catalyst 9120 Series

ap1g8

Cisco Catalyst 9105 Series

ap3g3

Cisco Aironet 2800 Series

Cisco Aironet 3800 Series

Cisco Aironet 4800 Series

Cisco Aironet 1560 Series

Cisco Catalyst Industrial Wireless 6300 Heavy Duty Series Access Points

Cisco 6300 Series Embedded Services Access Points

Maximum APs and Clients Supported

Table 5. Scale Supported in Cisco EWC Network

Primary AP Model

Maximum APs Supported

Maximum Clients Supported

Cisco Catalyst 9105 AWI

50

1000

Cisco Catalyst 9115 Series

50

1000

Cisco Catalyst 9117 Series

50

1000

Cisco Catalyst 9120 Series

100

2000

Cisco Catalyst 9124AXE/I/D

100

2000

Cisco Catalyst 9130

100

2000

Note

If 25 to 100 APs have joined the EWC network, the maximum clients on the EWC internal AP is limited to 20.

Compatibility Matrix

The following table provides software compatibility information:

Table 6. Compatibility Information

Cisco Embedded Wireless Controller on Catalyst Access Points

Cisco ISE

Cisco CMX

Cisco DNA Center

Dublin 17.11.x

3.0

2.7

2.6

2.4

2.3

10.6.3

10.6.2

10.6

10.5.1

See Cisco DNA Center Compatibility Information

Supported Browsers and Operating Systems for Web UI


Note

The following list of Supported Browsers and Operating Systems is not comprehensive at the time of writing this document and the behavior of various browser for accessing the GUI of the EWC is as listed below.

Table 7. Supported Browsers and Operating Systems

Browser

Version

Operating System

Status

Workaround

Google Chrome

77.0.3865.120

macOS Mojave Version 10.14.6

Works

Proceed through the browser warning.

Safari

13.0.2 (14608.2.40.1.3)

macOS Mojave Version 10.14.6

Works

Proceed through the browser warning.

Mozilla Firefox

69.0.1

macOS Mojave Version 10.14.6

Works only if exception is added.

Set the exception.

Mozilla Firefox

69.0.3

macOS Mojave Version 10.14.6

Works only if exception is added.

Set the exception.

Google Chrome

77.0.3865.90

Windows 10 Version 1903 (OS Build 18362.267)

Works

Proceed through the browser warning.

Microsoft Edge

44.18362.267.0

Windows 10 Version 1903 (OS Build 18362.267)

Works

Proceed through the browser warning.

Mozilla Firefox

68.0.2

Windows 10 Version 1903 (OS Build 18362.267)

Works

Proceed through the browser warning.

Mozilla Firefox

69.0.3

Windows 10 Version 1903 (OS Build 18362.267)

Works only if exception is added.

Set the exception.

Google Chrome

78.0.3904.108

macOS Catalina 10.15.1

Does not work

NA

Before You Upgrade

The following Remote Procedure Call (RPCs) should be used for Cisco Catalyst 9800 Series Wireless Controller and Cisco Embedded Wireless Controller:

  • Cisco Catalyst 9800 Series Wireless Controller: Use ewlc-wncd-stats within Cisco-IOS-XE-wireless-ap-global-oper.

  • Cisco Embedded Wireless Controller: Use ewlc-wncd-stats within Cisco-IOS-XE-wireless-access-point-oper.

Upgrade Path to Cisco IOS XE Dublin 17.11.x

Table 8. Upgrade Path to Cisco IOS XE Dublin 17.11.x

Current Software

Upgrade Path for Deployments with 9130 or 9124

Upgrade Path for Deployments Without 9130 or 9124

16.10.x

—

Upgrade first to 16.12.5 or 17.3.x and then to 17.11.x.

16.11.x

—

Upgrade first to 16.12.5 or 17.3.x and then to 17.11.x.

16.12.x

Upgrade first to 17.3.5 or 17.6.x or later and then to 17.11.x.

Upgrade first to 17.3.5 or 17.6.x or later and then to 17.11.x.

17.1.x

Upgrade first to 17.3.5 or 17.6.x or later and then to 17.11.x.

Upgrade first to 17.3.5 or 17.6.x or later and then to 17.11.x.

17.2.x

Upgrade first to 17.3.5 or 17.6.x or later and then to 17.11.x.

Upgrade first to 17.3.5 or 17.6.x or later and then to 17.11.x.

17.3.1 to 17.3.4

Upgrade first to 17.3.5 or 17.6.x or later and then to 17.11.x.

Upgrade first to 17.3.5 or 17.6.x or later and then to 17.11.x.

17.3.4c or later

Upgrade directly to 17.11.x.

Upgrade directly to 17.11.x.

17.4.x

Upgrade first to 17.6.x and then to 17.11.x.

Upgrade first to 17.6.x and then to 17.11.x.

17.5.x

Upgrade first to 17.6.x and then to 17.11.x.

Upgrade first to 17.6.x and then to 17.11.x.

17.6.x

Upgrade directly to 17.11.x.

Upgrade directly to 17.11.x.

17.7.x

Upgrade directly to 17.11.x.

Upgrade directly to 17.11.x.

17.8.x

Upgrade directly to 17.11.x.

Upgrade directly to 17.11.x.

17.9.x

Upgrade directly to 17.11.x.

Upgrade directly to 17.11.x.

17.10.x

Upgrade directly to 17.11.x.

Upgrade directly to 17.11.x.

Upgrading the Controller Software

This section covers the various aspects of upgrading the controller software.


Note

Before converting from CAPWAP to embedded wireless controller (EWC), ensure that you upgrade the corresponding AP with the CAPWAP image in Cisco AireOS Release 8.10.105.0. If this upgrade is not performed, the conversion will fail.

Finding the Software Version

The following table lists the Cisco IOS XE 17.11.x software for Cisco Embedded Wireless Controller on Catalyst Access Points.

Choose the appropriate AP software based on the following:

  • Cisco Embedded Wireless Controller on Catalyst Access Points software to be used for converting the AP from an unified wireless network CAPWAP lightweight AP to a Cisco Embedded Wireless Controller on Catalyst Access Points-capable AP (primary AP)

  • AP software image bundle to be used either for upgrading the Cisco Embedded Wireless Controller on Catalyst Access Points software on the primary AP or for updating the software on the subordinate APs or both

Prior to ordering Cisco APs, see the corresponding ordering guide for your Catalyst or Aironet access point.

Table 9. Cisco Embedded Wireless Controller on Catalyst Access Points Software

Primary AP

AP Software for Conversion from CAPWAP to Cisco EWC

AP Software Image Bundle for Upgrade

AP Software in the Bundle

Cisco Catalyst 9115 Series

C9800-AP-universalk9.17.11.01.zip

C9800-AP-universalk9.17.11.01.zip

ap1g7

Cisco Catalyst 9117 Series

C9800-AP-universalk9.17.11.01.zip

C9800-AP-universalk9.17.11.01.zip

ap1g6

Cisco Catalyst 9120 Series

C9800-AP-universalk9.17.11.01.zip

C9800-AP-universalk9.17.11.01.zip

ap1g7

Cisco Catalyst 9124AXE/I/D

C9800-AP-universalk9.17.11.01.zip

C9800-AP-universalk9.17.11.01.zip

ap1g6a

Cisco Catalyst 9130

C9800-AP-universalk9.17.11.01.zip

C9800-AP-universalk9.17.11.01.zip

ap1g6a

Supported Access Point Channels and Maximum Power Settings

Supported access point channels and maximum power settings on Cisco APs are compliant with the regulatory specifications of channels, maximum power levels, and antenna gains of every country in which the access points are sold. For more information about the supported access point transmission values in Cisco IOS XE software releases, see the Detailed Channels and Maximum Power Settings document at https://www.cisco.com/c/en/us/support/ios-nx-os-software/ios-xe-17/products-technical-reference-list.html.

For information about Cisco Wireless software releases that support specific Cisco AP modules, see the "Software Release Support for Specific Access Point Modules" section in the Cisco Wireless Solutions Software Compatibility Matrix document.

Guidelines and Restrictions

Internet Group Management Protocol (IGMP)v3 is not supported on Cisco Aironet Wave 2 APs.

Embedded Wireless Controller SNMP configuration is supported in DNAC.

High memory usage on AP running Embedded Wireless Controller. Enabling crash kernel on the AP consumes additional memory on the AP. Hence, if crash kernel is enabled, the overall memory usage of the device will increase and will impact the scale numbers. On Cisco Catalyst 9130 Access Points, the memory consumption is a high of 128 MB.

During the EWC HA pair selection, after a power outage, the standby AP fails to come up in the new EWC HA pair. Another EWC capable AP becomes the standby AP and fails to come up as well. To avoid this situation, ensure that the same IP address is enforced on the active or standby APs during HA pair selection.

Interoperability with Clients

This section describes the interoperability of the controller software with client devices.

The following table describes the configurations used for testing client devices.

Table 10. Test Configuration for Interoperability

Hardware or Software Parameter

Hardware or Software Type

Access Points

  • Cisco Aironet Series Access Points

    • 1540

    • 1560

    • 1815i

    • 1815w

    • 1830

    • 1840

    • 1850

    • 2800

    • 3800

    • 4800

  • Cisco Catalyst 9105AX Access Points

  • Cisco Catalyst 9115AX Access Points

  • Cisco Catalyst 9117AX Access Points

  • Cisco Catalyst 9120AX Access Points

  • Cisco Catalyst 9124AXE/I/D Access Points

  • Cisco Catalyst 9130AX Access Points

Radio

  • 802.11ax

  • 802.11ac

  • 802.11a

  • 802.11g

  • 802.11n (2.4 GHz or 5 GHz)

Security

Open, PSK (WPA2-AES), 802.1X (WPA2-AES) (EAP-FAST, EAP-TLS), WPA3.

Cisco ISE

See Compatibility Matrix.

Types of tests

Connectivity, traffic (ICMP), and roaming between two APs

The following table lists the client types on which the tests were conducted. Client types included laptops, hand-held devices, phones, and printers.

Caveats

Caveats describe unexpected behavior in Cisco IOS releases. Caveats that are listed as Open in a prior release are carried forward to the next release as either Open or Resolved.


Note

All incremental releases will cover fixes from the current release.

Cisco Bug Search Tool

The Cisco Bug Search Tool (BST) allows partners and customers to search for software bugs based on product, release, and keyword, and aggregates key data such as bug details, product, and version. The BST is designed to improve the effectiveness in network risk management and device troubleshooting. The tool has a provision to filter bugs based on credentials to provide external and internal bug views for the search input.

To view the details of a caveat, click the corresponding identifier.

Open Caveats for Cisco IOS XE 17.11.1

Identifier

Headline

CSCwe31030

Cisco Catalyst 9105AXW AP: Kernel panic crash is observed.

CSCwd78616

Cisco Catalyst AP9115 Tx power high and abnormal DCA channel assignment due to no neighbors.

CSCwd90742

Cisco Catalyst 9120AX AP: Kernel crash is observed.

CSCwe38431

Controller is remarking SIP packets from CS3 to CS0 in upstream/downstream when voice cac is configured.

CSCwd96484

Controller is relaoding unexpectedly and regularly generates "wncd" core files.

CSCwe45894

AP is not forwarding IGMPv3 query to wireless clients.

CSCwe55390

Cisco Aironet 3802AP buffering UP6/voice traffic~500ms after Spectralinkphone roam causing audioissues.

CSCwe18012

Crash is observed on standby controller while saving tbl QoS table to standby.

CSCwe32005

Cisco Catalyst 9130 AP: Packet loss is observed on Digital Signage device.

CSCwe49267

Controller is not sending GTK M5 packet to 8821 after FT roaming between wncds.

CSCwe44216

Cisco AP reloads unexpectedly due to kernel panic.

CSCwe43294

Cisco Catalyst 9105AXW and Cisco Aironet 1815W: Flex RLAN AP does not apply VLAN in the Ethernet port after AAA VLAN override.

CSCwe45300

Cisco Catalyst 9120 AP: Sending Msg:2 in mode:2 to hostapd failed.

CSCwe30473

Radio firmware reloads unexpectedly due to a frozen RC queue.

CSCwe44991

Cisco Catalyst 9105AX AP: Kernel crash is observed.

CSCwe11747

Cisco Catalyst AX APs are decoding EAP request ID incorrectly.

CSCwe22861

AID leak is observed in Flex Cisco Wave 2 APs.

CSCwe54482

Cisco Catalyst 9120 AP is dropping DHCP offer in click. Not forwarding to wireless interface.

CSCwe54575

Dell Latitude 5531 Laptops (Wi-Fi 6) are not able to connect.

CSCwe45970

Cisco Catalyst 9105 AP is stuck in UBOOT.

CSCwe61597

One of the WNCD is stuck in 100% high CPU.

CSCwe62694

EVENTLIB-3-CPUHOG Traceback is observed.

CSCwe50033

Cisco Catalyst 9120AX AP: Clients continuously disconnecting with more than 10 clients using MS TEAMS.

Resolved Caveats for Cisco IOS XE 17.11.1

Identifier

Headline

CSCwb52755

Fast Transition capable Apple and Android clients are unable to authenticate with IPSK profile.

CSCwb69531

Controller initiates EAPOL reties for the client in RUN state.

CSCwb84621

The PSK keys are getting changed while doing edit on pure WPA3 SAE WLAN leading to client connectivty faliure.

CSCwc01644

COS APs are using native VLAN instead of the VLAN specified in the policy profile.

CSCwc04197

Secondary controller crash is observed during redundancy switchover.

CSCwc05366

Wireless AAA Dyn VLAN Assignment - wir clients cannot reach each other

CSCwc14629

Controller GUI is taking long time to show initial page due to http request wirelessDeviceSummary.

CSCwc15533

Continuous wncmgrd CPUHOG traceback with scale Flexible NetFlow (FNF) mapping to policy profile results in 100% wncd utilization.

CSCwc15944

Multicast data is not sent to clients; some APs are unable to join.

CSCwc22468

Client traffic fails when client roams between access points with a transition between dot11r and dot11i.

CSCwc26105

High Availability split brain is observed due to multiple secondary addresses in the interface.

CSCwc32226

Zebra RF guns gets deleted from controller randomly due to reason: CO_CLIENT_DELETE_REASON_ZONE_CHANGE.

CSCwc36910

cEdge device pushes wrong (typo) syntax as "config wlan broadcase-ssid disable 2".

CSCwc42784

Client fails to connect when protocol based QoS is configured.

CSCwc55982

Observed stale entry in the output of the show wireless device tracking database ip command after client deletion.

CSCwc57227

Controller experiences an unexpected reset resulting in a system report containing a wncd core file.

CSCwc59518

Cisco Catalyst 9800-80 Series Controller crashes with reason critical process wncd fault.

CSCwd08678

The "Re-Authentication Timeout" is seen stuck as "Timer not running" and the client remains in RUN state after session timeout.

CSCwd16409

User-agent details needs to be truncated to string length 234 in WSA to prevent vstring corruption.

CSCwd17349

Active chassis might get stuck during the SSO failover.

CSCwb19227

Interim update is not sent to AAA during client reassociation/roam in GA.

CSCwb37457

Standby controller crashes when controller is configured in RMI+RP HA mode with wired guest feature.

CSCwb43548

Disable ip proxy-arp command by default.

CSCwb47040

Controller is not updating RFID location properly.

CSCwb58100

Controller is unable to map SSID with spaces in it on an attribute list.

CSCwb64761

Controller is discarding location updates from RFID tags.

CSCwb66603

CAPWAPAC_SMGR_TRACE_MESSAGE_AP_JOIN_DISJOIN does not have detail information about AP-NAME.

CSCwb67450

The show process cpu platform sorted command is needed in show tech wireless command output.

CSCwb78191

AAA VLAN override is not taken when iPSK authentication and anchor WLAN.

CSCwb91373

Cisco DNA Centre-Assurance-Duplicate Events: AP is connected to controller and the CAPWAP channel is up

CSCwb93513

Stale client entries are not deleted and is stuck on device-tracking database.

CSCwc26819

Controller does not send LLC or XID spoofed frames after a mobility event.

CSCwc28408

Controller crashes intermittently due to wncd critical process failure.

CSCwc31759

Adding policy tag is not allowed in WLAN page even though it meets 32 character.

CSCwc36125

Radio Resource Management (RRM) startup mode gets triggered on every reboot as the controller does not keep track of the last state.

CSCwc38828

Invalid TDL pointers cause wncd crash.

CSCwc41358

MAC filtering: WLAN profile column displays the WLAN name + description.

CSCwc45018

Unable to add RADIUS server group if server name includes special character '&'.

CSCwc51857

Controller GUI is displaying 802.1x with a lowercase 'x' instead of 802.1X with a capital 'X'.

CSCwc57836

Restore configuration by HTTP mode does not work in EWC.

CSCwc62824

Controller is not sending LLC or XID spoofed frames after a mobility event.

CSCwc72047

Access Points operate in disabled RF profile channels.

CSCwc76905

Switch Integrated Security Features (SISF) crash is observed when handling the DHCP messages.

CSCwc86955

Dual DFS stats on AP do not match controller information.

CSCwd00711

WPA3, OWE transition enabled: Non-WPA3 clients are getting network access in webauth-pending state.

CSCwd00979

The output of the show wlan all command has incorrect WLAN radio policy information.

CSCwd06018

802.11r re-auth failed due to invalid Pairwise Master Key ID (PMKID) while doing inter-WNCD roaming.

Troubleshooting

For the most up-to-date, detailed troubleshooting information, visit the Cisco TAC website at:

https://www.cisco.com/en/US/support/index.html

Go to Product Support and select your product from the list, or enter the name of your product. Look under Troubleshoot and Alerts to find information about the problem that you are experiencing.

Related Documentation

Information about Cisco IOS XE 16 is available at:

https://www.cisco.com/c/en/us/products/ios-nx-os-software/ios-xe/index.html

All the support documentation for Cisco Catalyst 9100 Access Points are available at: https://www.cisco.com/c/en/us/support/wireless/catalyst-9100ax-access-points/tsd-products-support-series-home.html

Cisco Validated Designs documents are available at:

https://www.cisco.com/go/designzone

Cisco Embedded Wireless Controller on Catalyst Access Points

For support information, see the following documents:

Installation guides for Catalyst Access Points are available at:

https://www.cisco.com/c/en/us/support/wireless/catalyst-9100ax-access-points/products-installation-guides-list.html

For all Cisco Wireless Controller software-related documentation, see:

https://www.cisco.com/c/en/us/support/wireless/catalyst-9800-series-wireless-controllers/tsd-products-support-series-home.html

Wireless Products Comparison

Cisco Connected Mobile Experiences

Cisco Connected Mobile Experiences Documentation

Cisco DNA Center

Cisco DNA Center Documentation

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Cisco Bug Search Tool

Cisco Bug Search Tool (BST) is a web-based tool that acts as a gateway to the Cisco bug tracking system that maintains a comprehensive list of defects and vulnerabilities in Cisco products and software. BST provides you with detailed defect information about your products and software.