Cisco Catalyst 9120AXE-E Wireless Access Point - Wi-Fi 6

The maximum data transfer rate is 5000 Mbit/s.

Yes, it does.

It supports AES, EAP, EAP-GTC, EAP-SIM, MSCHAPv2, TLS, TTLS, WPA, WPA2, and WPA3.

The operating temperature range is -20 to 50 °C.

It has 4 antennas, both internal and external.

Yes, it supports external and detachable antennas.

Warranty information is not available.

Refer to the Cisco documentation for firmware upgrade instructions, typically through the Cisco DNA Center or CLI.

Check the power connection and the PoE switch or adapter. Ensure the power cable is securely connected and the switch is providing power. Verify the power source is working properly.

Relocate the access point to a more central location. Ensure there are no obstructions such as walls or metal objects between the access point and the client devices. Adjust the antenna position for better coverage.

Check your internet connection speed. Reduce the number of connected devices. Ensure the access point is not overloaded. Consider upgrading your internet plan if necessary.

Verify the correct SSID and password. Ensure your device is within range of the access point. Check the access point configuration for any incorrect settings. Restart both the access point and the connecting device.

Change the Wi-Fi channel on the access point. Use a Wi-Fi analyzer app to identify less congested channels. Ensure that other electronic devices are not causing interference.