Resolving MXL AC360Z hardware issues in Zoom

Earlier today, we received information that a recent batch of microphones manufactured by MXL AC-360-Z have been faulty on-board chips and have been recalled from the market. Due to the defect in the chip, Zoom Rooms for Mac is unable to recognize the microphone as having 4 channels of audio when the microphone is connected.

It is possible that the MXL AC-360-Z microphone units purchased between August 17 and September 26, 2018 may be unable to operate properly with the Zoom Rooms application if they were purchased between this time period.

How to troubleshoot MXL AC360Z issues with Zoom Rooms

  1. If your MXL AC360Z device appears as USB Audio Codec (number) on the Zoom Rooms Controller interface, then you should not be affected.
  2. You do not have to disable the MXL AC360Z controller interface if you are connected to the Zoom Rooms for PC (Windows) controller interface, and if the MXL AC360Z appears on the Zoom Rooms controller interface as MXL AC360Z(0), then the device does not have any functional limitations. This label should be MXL AC360Z(number) instead of MXL AC360Z(0) due to a cosmetic issue. As a result, this cosmetic issue has been resolved in version 4.1.6(35121.1201) and later.
  3. It is important to understand that if the MXL AC360Z is connected to a Zoom Rooms for Mac (MacOS), you are affected in terms of its functionality. The replacement unit can be obtained by contacting MXL (step 5).
  4. In the current state of Zoom Rooms, it is not possible to have both MXL AC360Z(0) and USB Audio Codec (number) in a single Zoom Rooms setup for both Mac and Windows at the same time.  It is possible to mix MXL AC404Z and MXL AC360Z descriptors with both of them being listed as USB Audio Codec (number) when you use both of them together.
  5. Please contact the following MXL internal agent assigned to this issue if you wish to open a replacement claim:
    • Feel free to contact Steve Curto by calling 1 (800) 800-6608 x 1124 or by emailing him at
    • The on-board chips are currently being reprogrammed by MXL, and they plan to begin replacing the units on November 5, 2018 and they hope to have everything done by November 30, 2018.
  6. Please make sure you download the most recent Zoom Rooms software for your Mac or PC as soon as you receive the new MXL (MXL-AC360v2).

Our company greatly appreciates your support and the trust you place in MXL and Zoom brands and we deeply regret this unfortunate incident that occurred.  Please accept our apologies for any inconvenience caused by this situation, and please be assured that we are taking immediate action to resolve it.


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Frequently Asked Questions


What are the main issues with Zoom?

  • There are issues with the camera and audio with Zoom. Upon joining the meeting, you are unable to view the video or hear the microphone.

  • The use of Zoom bombs or zoom raids is known as Zoombombing. Throughout the last few months, many users have started to experience this issue, which has become a common occurrence.

  • The Zoom virtual screen is experiencing some issues at the moment.

  • A feature that disappears. …

  • Performance issues have been reported. …

  • Interference with audio.

What hardware is needed for a Zoom meeting?

The iPad OS must be version 13 or higher. A minimum of Android 5.0 is required. A full list of supported operating systems and devices can be found here if you are looking for a tablet PC running Windows 10 (S-Mode is not supported at this time).

Is there a problem with Zoom currently?

Here is a graph that provides a picture of how many reports have been received about Zoom over the course of the past 24 hours, based on the time of day. Generally, an outage is considered to be occurring when the number of reports is higher than the baseline, which can be seen as the red line on the graph. Zoom does not appear to be experiencing any problems at the moment, as far as we are aware.

Why is Zoom so laggy now?

As soon as Zoom detects that your internet bandwidth is low, it automatically reduces your video quality to result in a “grainy” or pixelated appearance. You and your attendees could experience the following problems if your connection is not strong enough to handle it: Audio and video “stuttering” (going in and out) or freezing up completely

Why does Zoom video keep freezing?

There are several reasons why Zoom freezes up, but the most common reason is an issue with the app. Zoom sometimes doesn’t allow you to set up your webcam right away, resulting in audio lagging and the webcam not working. If you are experiencing this problem, then there is a reason behind it, which is either that there are some complications in the app settings, or several apps of the same nature are running in the background at the same time.

How do I troubleshoot my Zoom connection?

Use an online speed test to determine your Internet bandwidth, such as nperf, Speedtest, or Comparitech, to see how much bandwidth you have. When your internet router does not have wired connections, try connecting directly via Wired (if it has wired ports). Bring your computer or mobile device closer to the WiFi router or access point in your house or office to see if that helps. The firmware of your Wi-Fi router needs to be upgraded

How do I fix Zoom unable to connect?

What you can do about it

  1. Ensure that your firewall and proxy settings are correct by contacting your network administrator.

  2. Ensure that you disable any antivirus software that may be interfering with your connection by turning it off.

  3. In order to make sure that you can access Zoom, you will need to check with your internet service provider.

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