Download AIR-AP2800-K9-ME-8-5-161-0.tar for Cisco Wireless Access Points
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- Aug 6, 2023
- 15 min read
How to Download and Install Cisco Mobility Express Software
If you are looking for a simple, reliable, and affordable wireless solution for your small or medium-sized business, you might want to consider Cisco Mobility Express software. This software is a virtual wireless LAN controller integrated on 802.11ac Wave 2 access points that can support up to 100 access points and 2000 clients. In this article, we will show you how to download and install Cisco Mobility Express software on your access points and how to troubleshoot some common issues that you might encounter.
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What is Cisco Mobility Express Software?
Cisco Mobility Express software is a wireless solution that brings the best practices and quality of Cisco's large- and medium-scale solutions to smaller-scale implementations without additional cost or complexity. It allows you to manage your wireless network from a web-based interface or a mobile app, without the need for a physical controller. It also provides advanced features such as Flexible Radio Assignment, Fast Lane, Wi-Fi optimizations, and Wi-Fi analytics for iOS devices.
Features and Benefits of Cisco Mobility Express Software
Some of the features and benefits of Cisco Mobility Express software are:
Simple by design: You can set up your wireless network in minutes using the controller configuration wizard and the intuitive web interface or mobile app. You can also use the Smart Assist feature to automatically optimize your network settings based on best practices.
Reliable and secure: You can enjoy high-performance wireless connectivity with 802.11ac Wave 2 technology and multiuser Multiple-Input Multiple-Output (MU-MIMO) capabilities. You can also protect your network from unauthorized access and threats with built-in security features such as Wireless Intrusion Prevention System (WIPS), rogue detection, and Secure Shell (SSH) encryption.
Affordable and scalable: You can save money by using access points that can act as both controllers and clients, without the need for additional hardware or licenses. You can also scale your network easily by adding more access points as your business grows.
Supported Access Points and Clients
The following access points can run the wireless LAN controller function on Cisco Mobility Express software:
Cisco Aironet 4800 Series
Cisco Aironet 3800 Series
Cisco Aironet 2800 Series
Cisco Aironet 1850 Series
Cisco Aironet 1830 Series
Cisco Aironet 1815 Series
Cisco Aironet 1560 Series
Cisco Aironet 1540 Series
The following access points can join a Mobility Express network and service clients, but they cannot run the wireless LAN controller function:
Cisco Aironet 3700 Series
Cisco Aironet 2700 Series
Cisco Aironet 1700 Series
The following clients are supported by Cisco Mobility Express software:
Any Wi-Fi client that complies with IEEE 802.11 standards
Any iOS device that supports Fast Lane, Wi-Fi optimizations, and Wi-Fi analytics features
How to Download Cisco Mobility Express Software?
To download Cisco Mobility Express software, you need to have a valid Cisco account and a service contract that covers the access points that you want to use. You also need to have enough storage space on your laptop or a USB flash drive to save the software image file.
Prerequisites for Downloading Cisco Mobility Express Software
Before you download Cisco Mobility Express software, you need to do the following:
Verify the model and the software version of your access points. You can do this by logging in to the access point web interface or by using the show version command on the access point console. You need to download the Cisco Mobility Express software that matches the model and the software version of your access points.
Check the compatibility matrix for Cisco Mobility Express software and Cisco wireless solutions. You can find the matrix at this URL: [7]( You need to ensure that the Cisco Mobility Express software that you download is compatible with the other wireless solutions that you use, such as Cisco Prime Infrastructure, Cisco Identity Services Engine, or Cisco Wireless LAN Controller.
Obtain a valid Cisco account and a service contract. You can create a Cisco account at this URL: [8]( You can contact your Cisco partner or reseller to purchase a service contract that covers your access points. You need to have a valid Cisco account and a service contract to access the Cisco Mobility Express software download page.
Steps to Download Cisco Mobility Express Software
After you have met the prerequisites, you can follow these steps to download Cisco Mobility Express software:
Go to the Cisco Mobility Express software download page at this URL: [9](
Log in with your Cisco account credentials.
Select the software image file that matches the model and the software version of your access points. For example, if you have a Cisco Aironet 2800 Series access point running CAPWAP Lightweight AP Software version 8.5.161.0, you need to select AIR-AP2800-K9-ME-8-5-161-0.tar.
Click Download and save the file to your laptop or a USB flash drive.
You have successfully downloaded Cisco Mobility Express software. The next step is to install it on your access points.
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air-ap2800-k9-me-8-5-161-0 license requirements How to Install Cisco Mobility Express Software?
To install Cisco Mobility Express software, you need to have a laptop or a USB flash drive that contains the software image file that you downloaded. You also need to have access to the console port or the web interface of your access points. You can install Cisco Mobility Express software on one access point at a time, or on multiple access points simultaneously using the pre-image download feature.
Prerequisites for Installing Cisco Mobility Express Software
Before you install Cisco Mobility Express software, you need to do the following:
Ensure that your access points are powered on and connected to the network. You can use Power over Ethernet (PoE) or an external power supply to power your access points.
Ensure that your access points have a valid IP address and can reach the default gateway and the DNS server. You can use Dynamic Host Configuration Protocol (DHCP) or static IP configuration to assign IP addresses to your access points.
Ensure that your access points are not joined to any other wireless LAN controller. You can use the show capwap ip config command on the access point console to verify the controller IP address. If your access points are joined to another controller, you need to disassociate them by using the capwap ap controller ip address clear command on the access point console.
Ensure that your laptop or USB flash drive has enough free space to store the software image file. You also need to ensure that your laptop or USB flash drive is formatted with a FAT16 or FAT32 file system.
Steps to Install Cisco Mobility Express Software
After you have met the prerequisites, you can follow these steps to install Cisco Mobility Express software:
Connect your laptop or USB flash drive to the console port or the web interface of the access point that you want to use as the controller. The controller access point is the one that runs the wireless LAN controller function and manages the other access points in the network.
Copy the software image file from your laptop or USB flash drive to the access point. You can use one of the following methods:
If you are using the console port, you can use the copy command on the access point console. For example, if you are using a USB flash drive, you can use this command: copy usbflash0: AIR-AP2800-K9-ME-8-5-161-0.tar flash:
If you are using the web interface, you can use the Software Upgrade page on the web interface. You can access the web interface by entering the IP address of the access point in a web browser. You need to log in with the default username and password, which are Cisco and Cisco respectively. On the Software Upgrade page, you can browse and select the software image file from your laptop or USB flash drive and click Upload Image.
Verify that the software image file is successfully copied to the access point. You can use one of the following methods:
If you are using the console port, you can use the dir command on the access point console. For example, you can use this command: dir flash: include AIR-AP2800-K9-ME-8-5-161-0.tar
If you are using the web interface, you can use the File Management page on the web interface. On the File Management page, you can see a list of files stored on the access point flash memory.
Extract and install the software image file on the access point. You can use one of the following methods:
If you are using the console port, you can use the archive command on the access point console. For example, you can use this command: archive download-sw /overwrite /reload tftp:///AIR-AP2800-K9-ME-8-5-161-0.tar
If you are using the web interface, you can use the Software Upgrade page on the web interface. On the Software Upgrade page, you can select Install from Flash and choose AIR-AP2800-K9-ME-8-5-161-0.tar from the drop-down list. Then, click Install Image.
Wait for the access point to reboot and load Cisco Mobility Express software. This might take several minutes.
You have successfully installed Cisco Mobility Express software on one access point. The next step is to configure it as a controller and join other access points to it. How to Configure Cisco Mobility Express Software?
After you have installed Cisco Mobility Express software on one access point, you need to configure it as a controller and join other access points to it. You can use the controller configuration wizard to set up your wireless network in a few easy steps. You can access the controller configuration wizard from the web interface or the mobile app of the controller access point.
Prerequisites for Configuring Cisco Mobility Express Software
Before you configure Cisco Mobility Express software, you need to do the following:
Ensure that your laptop or mobile device is connected to the same network as the controller access point. You can use a wired or wireless connection.
Ensure that your laptop or mobile device has a web browser that supports HTML5 and JavaScript, such as Google Chrome, Mozilla Firefox, or Safari.
Ensure that your laptop or mobile device has the Cisco Wireless app installed, if you want to use the mobile app to configure the controller. You can download the Cisco Wireless app from the App Store or Google Play.
Steps to Configure Cisco Mobility Express Software
After you have met the prerequisites, you can follow these steps to configure Cisco Mobility Express software:
Launch the web browser or the mobile app on your laptop or mobile device.
Enter the default IP address of the controller access point in the web browser, or scan the QR code on the access point label using the mobile app. The default IP address is 192.168.1.1.
Log in with the default username and password, which are Cisco and Cisco respectively.
Follow the instructions on the controller configuration wizard to set up your wireless network. You need to provide some basic information, such as:
The name of your wireless network (SSID)
The security mode and password of your wireless network
The management IP address and password of the controller access point
The country code and time zone of your location
The administrator username and password for accessing the web interface or the mobile app
Click Finish or Apply to save your settings and complete the configuration.
You have successfully configured Cisco Mobility Express software on one access point. The next step is to join other access points to it.
How to Join Other Access Points to Cisco Mobility Express Software?
After you have configured Cisco Mobility Express software on one access point, you can join other access points to it and form a Mobility Express network. The controller access point will automatically discover and manage the other access points that are compatible with Cisco Mobility Express software. You can also use the pre-image download feature to install Cisco Mobility Express software on multiple access points simultaneously.
Prerequisites for Joining Other Access Points to Cisco Mobility Express Software
Before you join other access points to Cisco Mobility Express software, you need to do the following:
Ensure that your other access points are powered on and connected to the same network as the controller access point. You can use Power over Ethernet (PoE) or an external power supply to power your access points.
Ensure that your other access points have a valid IP address and can reach the default gateway and the DNS server. You can use Dynamic Host Configuration Protocol (DHCP) or static IP configuration to assign IP addresses to your access points.
Ensure that your other access points are not joined to any other wireless LAN controller. You can use the show capwap ip config command on the access point console to verify the controller IP address. If your access points are joined to another controller, you need to disassociate them by using the capwap ap controller ip address clear command on the access point console.
Ensure that your other access points are compatible with Cisco Mobility Express software. You can check the compatibility matrix for Cisco Mobility Express software and Cisco wireless solutions at this URL: [10](
Steps to Join Other Access Points to Cisco Mobility Express Software
After you have met the prerequisites, you can follow these steps to join other access points to Cisco Mobility Express software:
If your other access points are running CAPWAP Lightweight AP Software, you need to install Cisco Mobility Express software on them first. You can use one of these methods:
If you want to install Cisco Mobility Express software on one access point at a time, you can follow the same steps as described in section.
If you want to install Cisco Mobility Express software on multiple access points simultaneously, you can use the pre-image download feature. This feature allows you to download the software image file from the controller access point to the other access points before installing it. This can save time and bandwidth, especially if you have a large number of access points. To use this feature, you need to do the following:
Log in to the web interface or the mobile app of the controller access point.
Go to the Pre-Image Download page on the web interface or the mobile app.
Select the software image file that matches the model and the software version of your other access points. For example, if you have a Cisco Aironet 2800 Series access point running CAPWAP Lightweight AP Software version 8.5.161.0, you need to select AIR-AP2800-K9-ME-8-5-161-0.tar.
Select the access points that you want to download the software image file to. You can select all access points or specific access points based on their MAC addresses or hostnames.
Click Download Image to start the pre-image download process. You can monitor the progress and status of the pre-image download on the same page.
After the pre-image download is complete, you can install Cisco Mobility Express software on the other access points by using the Install from Controller option on the Software Upgrade page on the web interface or the mobile app.
If your other access points are already running Cisco Mobility Express software, you don't need to install it again. You just need to join them to the controller access point. You can use one of these methods:
If you want to join other access points manually, you can use the capwap ap controller ip address command on the access point console. For example, if the IP address of the controller access point is 192.168.1.1, you can use this command: capwap ap controller ip address 192.168.1.1
If you want to join other access points automatically, you can use one of these methods:
The controller access point will broadcast its IP address and hostname using Layer 2 and Layer 3 discovery mechanisms. The other access points will listen for these broadcasts and try to join the controller access point.
The other access points will try to resolve the hostname CISCO-CAPWAP-CONTROLLER using DNS or DHCP option 43. If they can resolve this hostname to an IP address, they will try to join the controller access point with that IP address.
You have successfully joined other access points to Cisco Mobility Express software. The next step is to troubleshoot some common issues that you might encounter.
How to Troubleshoot Common Issues with Cisco Mobility Express Software?
Cisco Mobility Express software is designed to provide a simple and reliable wireless solution for your small or medium-sized business. However, sometimes you might encounter some issues that affect your wireless network performance or security. In this section, we will show you how to troubleshoot some common issues with Cisco Mobility Express software and how to resolve them.
Issue 1: Access Point Fails to Join Controller or Joins with Single Radio Due to Country Mismatch
This issue occurs when the country code configured on the controller access point does not match the country code configured on the other access points. The country code determines the regulatory domain and channel set for your wireless network. If there is a country mismatch, the other access points might fail to join the controller or join with only one radio enabled.
To resolve this issue, you need to do the following:
Verify that the country code configured on the controller access point matches the country code configured on the other access points. You can use one of the following methods:
If you are using the web interface or the mobile app, you can go to the General page on the web interface or the mobile app and check the Country Code setting.
If you are using the console port, you can use the show running-config command on the access point console and check the country command.
If there is a country mismatch, you need to change the country code on the controller access point or the other access points to match each other. You can use one of the following methods:
If you are using the web interface or the mobile app, you can go to the General page on the web interface or the mobile app and change the Country Code setting. You need to reboot the access points for the change to take effect.
If you are using the console port, you can use the config country command on the access point console and reboot the access points for the change to take effect.
Issue 2: Cross-Site Request Forgery Vulnerability in Cisco Mobility Express Software
This issue occurs when an attacker exploits a cross-site request forgery (CSRF) vulnerability in Cisco Mobility Express software to execute unauthorized commands on the controller access point. A CSRF attack is a type of web-based attack that forces a user's browser to send a malicious request to a web application that they are already authenticated with. The web application then executes the request as if it came from the user, without verifying its origin or intent.
To resolve this issue, you need to do the following:
Upgrade your Cisco Mobility Express software to version 8.10.185.0 or later. This version fixes the CSRF vulnerability and adds a CSRF token validation mechanism to prevent such attacks. You can download the latest Cisco Mobility Express software from this URL: [11](
Follow the steps described in section to install the upgraded software on your access points.
Change your administrator password for accessing the web interface or the mobile app. This will prevent any unauthorized access to your wireless network settings by an attacker who might have obtained your password through a CSRF attack.
Issue 3: Inaccurate "CDP-4-DUPLEX_MISMATCH" Messages Are Logged on AP Switchports
This issue occurs when Cisco Discovery Protocol (CDP) reports a duplex mismatch between an access point and a switchport, even though there is no actual mismatch. CDP is a protocol that allows network devices to discover and share information about each other, such as device type, model, IP address, and duplex mode. A duplex mismatch is a condition where two network devices operate in different duplex modes, such as full-duplex or half-duplex, which can cause performance issues and errors.
To resolve this issue, you need to do the following:
Verify that there is no actual duplex mismatch between your access point and your switchport. You can use one of these methods:
If you are using the web interface or the mobile app, you can go to the Ethernet page on the web interface or the mobile app and check the Duplex Mode setting.
If you are using the console port, you can use the show interface command on the access point console and check the Duplex Mode setting.
If there is an actual duplex mismatch, you need to change the duplex mode on your access point or your switchport to match each other. You can use one of these methods:
If you are using the web interface or the mobile app, you can go to the Ethernet page on the web interface or the mobile app and change the Duplex Mode setting. You can choose Auto, Full, or Half.
If you are using the console port, you can use the config interface duplex command on the access point console and change the Duplex Mode setting. You can choose auto, full, or half.
If you are using the switch console, you can use the duplex command on the switchport interface and change the Duplex Mode setting. You can choose auto, full, or half.
If there is no actual duplex mismatch, but CDP still reports a duplex mismatch, you can ignore the CDP messages or disable CDP on your access point or your switchport. You can use one of these methods:
If you are using the web interface or the mobile app, you can go to the CDP page on the web interface or the mobile app and disable CDP on your access point.
If you are using the console port, you can use the no cdp run command on the access point console and disable CDP on your access point.
If you are using the switch console, you can use the no cdp enable command on the switchport interface and disable CDP on your switchport.
Conclusion
Cisco Mobility Express software is a wireless solution that provides a simple, reliable, and affordable way to set up and manage your wireless network for your small or medium-sized business. In this article, we have shown you how to download and install Cisco Mobility Express software on your access points, how to configure it as a controller and join other access points to it, and how to troubleshoot some common issues that you might encounter. We hope that this article has helped you to understand and use Cisco Mobility Express software better.
FAQs
Here are some frequently asked questions about Cisco Mobility Express software:
Q: How many access points and clients can Cisco Mobility Express software support?
A: Cisco Mobility Express software can support up to 100 access points and 2000 clients in a single Mobility Express network.
Q: How can I monitor and manage my wireless network using Cisco Mobility Express software?
A: You can monitor and manage your wireless network using the web interface or the mobile app of the controller access point. You can also use other Cisco wireless solutions such as Cisco Prime Infrastructure, Cisco Identity Services Engine, or Cisco Wireless LAN Controller to integrate with Cisco Mobility Express software.
Q: How can I upgrade my Cisco Mobility Express software to a newer version?
A: You can upgrade your Cisco Mobility Express software by downloading the latest software image file from this URL: [12]( and following the steps described in section. You can also use the Software Upgrade page on the web interface or the mobile app to check for available software updates and download them automatically.
Q: How can I reset my Cisco Mobility Express software to factory default settings?
A: You can reset your Cisco Mobility Express software to factory default settings by using the write erase command on the access point console and rebooting the access point. This will erase all the configuration and data on the access point and restore it to the default settings. You can also use the Reset to Factory Default option on the Maintenance page on the web interface or the mobile app to reset the controller access point and all the other access points in the network.
Q: How can I get more help and support for Cisco Mobility Express software?
A: You can get more help and support for Cisco Mobility Express software by visiting the Cisco Mobility Express support page at this URL: [13]( You can find more resources such as documentation, videos, troubleshooting guides, and community forums. You can also contact Cisco Technical Assistance Center (TAC) or your Cisco partner or reseller for technical support.
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