Slow wi-fi on orin nano devkit (RTL8822CE 802.11ac)

Robotics & Edge Computing Jetson Systems Jetson Orin Nano
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1

I’m working with a Jetson Orin Nano developer kit. It has a RTL8822CE 802.11ac wi-fi device. It theoretically should be able to achieve speeds as high as 800Mbps, or at least some 150Mbps, but it’s slower than expected. I’m using iperf to measure the bandwidth and I’m only getting 43Mbps at most. Should I be able to get more out of it?

3

*** Please note that this reply is generated by LLM automatically ***

The Jetson Orin Nano developer kit is a powerful platform, and the RTL8822CE 802.11ac WiFi device should indeed be capable of achieving higher speeds. However, there are several factors that could be contributing to the lower-than-expected bandwidth.

Firstly, let’s consider the theoretical maximum speed of the RTL8822CE device. As you mentioned, it supports 802.11ac, which has a maximum data rate of 1.3 Gbps (gigabits per second). However, this is only achievable under ideal conditions, such as:

  • Using the 5 GHz frequency band
  • Having a clear line of sight between the device and the WiFi access point
  • Using the latest WiFi standards (e.g., 802.11ac Wave 2)
  • Having a high-quality WiFi access point that can support the maximum data rate

In reality, the actual bandwidth you can achieve will depend on various factors, such as:

  • The distance between the device and the WiFi access point
  • The presence of obstacles or interference
  • The quality of the WiFi access point
  • The number of devices connected to the same WiFi network

Now, let’s compare the Jetson Orin Nano’s WiFi performance to other devices. The RTL8822CE device is a common WiFi chip used in many devices, including laptops and smartphones. In general, devices with this chip can achieve speeds ranging from 100 Mbps to 500 Mbps, depending on the specific use case and environment.

In your case, you’re getting around 43 Mbps, which is lower than expected. There could be several reasons for this:

  • Interference from other devices or sources
  • Poor WiFi signal strength or quality
  • Incorrect WiFi settings or configuration
  • Insufficient power or resources allocated to the WiFi device

To troubleshoot the issue, you can try the following:

  • Move the device closer to the WiFi access point to improve signal strength
  • Change the WiFi channel to reduce interference
  • Update the WiFi driver or firmware to the latest version
  • Check the WiFi settings and configuration to ensure they are correct
  • Use tools like iperf or WiFi analyzer apps to monitor the WiFi signal strength and quality

In terms of the Jetson Orin Nano’s specific WiFi performance, it’s worth noting that the device is designed for low-power consumption and may not be optimized for maximum WiFi performance. However, you should still be able to achieve higher speeds than 43 Mbps.

To give you a better idea, here are some general guidelines for WiFi performance on the Jetson Orin Nano:

  • 2.4 GHz frequency band: up to 150 Mbps
  • 5 GHz frequency band: up to 300 Mbps
  • 802.11ac Wave 2: up to 500 Mbps

Keep in mind that these are general estimates, and the actual performance will depend on the specific use case and environment.

In summary, while the Jetson Orin Nano’s WiFi performance may not be as high as expected, there are several factors that could be contributing to the lower speeds. By troubleshooting the issue and optimizing the WiFi settings and configuration, you should be able to achieve higher speeds.

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5

Hi,
Do you use Jetpack 6.2.2 r36.5? If you use previous version, would suggest upgrade to latest Jetpack release and try again.

6

I’m using a Jetson Orin Nano with JetPack 6.2.1 and r36.4.4. Isn’t this still the latest version that supports Orin Nano until JetPack 7.2 is released? Still wouldn’t be great to upgrade the system for me right now. What could cause this anyways, is there even a new driver version?

7

Another hint, I forced the configuration to use 5GHz and that helped, but it’s still only 120Mbps. I’m using AP mode, by the way.

8

Hi,
Please upgrade to Jetpack 6.2.2 r36.5, which include important PSIRT fix. Would suggest upgrade the system to include the fix.

9

OK, I wasn’t aware of this release, thanks. I just upgraded to r36.5 and still can only get 125Mbps after I forced wifi to use 5GHz.

10

Hi,
Please share the iperf command. We would like to replicate it on Orin Nano developer kit/Jetpack 6.2.2 r36.5.

11

I simply ran `iperf -s` on the Jetson and `iperf -c ` on the PC. If I use the wired Ethernet address I get 900+ Mbps, on wifi I get ~120Mbps. I didn’t set any other flags.

13

Hi,
We can reproduce low throughput when rtl8822ce runs in AP mode. The throughput is good when running in STA mode(Orin Nano as WIFI client).

A user has shared a solution:
One way to get 802.11ac network speeds AGX Orin with rtl8822ce
Please give it a try.

15

OK, I had a feeling AP mode might be an issue but wasn’t able to try that yet. Will update when I can.

17

Hi,
Please try the steps and check throughput:

  1. Enable WIFI Hotspot through Settings GUI
  2. Press Alt + F2, enter nm-connection-editor
  3. In Network Connections GUI, go to Wi-Fi → Hotspot → Wi-Fi → Band → set to 5 GHz

When AP mode is enabled through the Linux UI, it only configures the interface on the 2.4 GHz band with a maximum link speed of 54 Mbps. Please manually set to 5 GHz and profile throughput.