External USB Keyboard/mouse randomly stops working on New MacBook Air Early 2020 model running Catalina 10.15.4

Yeah, on my MacBook Air 2020 my wireless usb mouse cuts out too when using the 2.4ghz USB A receiver plugged into the USB A ports on my USB-C hub. My workaround is using a USB-A to USB-C adapter, and plugging that into the USB C port on my hub, and for some reason that solves it. But when the receiver is directly plugged into the USB A ports on the hub, it intermittently cuts out.

It's annoying, and the solution I have to live with for the time being is ridiculous. Apple please fix this!

We're experiencing the same problem here! 🙋🏻‍♂️

Since my partner upgraded from a MacBook (12-inch, Early 2016, macOS Mojave) to a new MacBook Pro (13-inch, 2020, Four Thunderbolt 3 ports, macOS Catalina), the three USB-C peripherals (iPhone 11, Wacom Intuos Pro Medium, Seagate Fast SSD 1TB) plugged into the three downstream USB-C ports on the back of her 21.5-inch LG UltraFine 4K Display, keep disconnecting (all switching off at the same time) with the computer locking up and requiring restarting. 😫

When she takes the 21.5-inch LG UltraFine 4K Display (which obviously has a USB hub) out of the equation, and plugs her three USB-C peripherals directly into her 2020 MacBook Pro, everything works just fine.

So, what is it that's causing these disconnects? 🤔

• LG's hardware, the 21.5-inch LG UltraFine 4K Display. Is it 100% compatible with Apple's 2020 MacBook Pros?
• Apple's software, macOS Catalina, the way it handles USB hubs?
• Something else?

I have a late 2016 MBP and the latest OS updates. This morning, none of my Logitech USB devices (K750 keyboard, M310 mouse) worked either. I thought it might be a faulty older usb 2 hub, but testing with a new USB-C to USB 3 hub, I got no recognition of the devices. I needed to work rather than troubleshoot all day, so I bought an extended mac bluetooth keyboard and magic mouse, which work well. I am also concerned that there is something going on with the usb connectors or how the system software handles usb 2 devices. I did upgrade both the firmware and the logitech unifying software prior to going all bluetooth. Please fix this issue..it sounds like something more than external hardware. Thanks

Hi,

We're experiencing the same problem here too.

Upgraded from MBP 13" 2016 to MBP 13" 2020. Never had any issues when using my MBP 13" 2016. Problem only occurred after I upgraded to MBP 13" 2020.

My MBP is connected to my Dell U2719DC as a USB Hub. My accessories connected to my Dell Monitor (Keyboard, Mouse Receiver and Soundbar) stop working intermittently as well. 2 to 3 times a day and only works again after a restart.

Suspect problem is due to the USB hub like above and only for new 2020 models. The same accessories were working find before I upgraded to the 2020 model.

Please issue a fix asap.

Have you run any "cleaning", "optimizing", "speed-up" or anti-virus apps on your Mac?

Download and run Etrecheck. Etrecheck is a diagnostic tool that was developed by one of the most respected users here in the ASC and recommended by Apple Support  to provide a snapshot of the system and help identify the more obvious culprits that can adversely affect a Mac's performance.

Copy the report

and use the Add Text button to include the report in your reply. How to use the Add Text Feature When Posting Large Amounts of Text, i.e. an Etrecheck Report

IMPORTANT:

Before running Etrecheck assign Full Disk Access to Etrecheck in the Etrecheck's Privacy preference pane so that it can get additional information from the Console and log files for the report:

Also click and read the About info to further permit full disk access.

Then we can examine the report and see if we can determine what might be causing the problem.

Hello there Retens,

Thank you so much for using Apple Support Communities!

I understand that you are having issues with your Logitech G602 mouse and external Apple Keyboard intermittently disconnecting during normal use. I am more than happy to guide you in the right direction.

It sounds as if you've done majority of the necessary troubleshooting steps. Check out these additional resources for further troubleshooting and to test the issue in a new user as this may resolve your issue:

If your Apple wireless mouse, keyboard, or trackpad isn't working with your Mac as expected

How to test an issue in another user account on your Mac

If you continue to experience issues, you may need to look into reinstalling your macOS. It is recommended you backup the device to an external hard drive before attempting a reinstall. Here are some resources that will walk you through backing up your device with Time Machine and reinstalling your macOS:

Back up your Mac with Time Machine

How to reinstall macOS from macOS Recovery

I hope this helps! Have a great day!

I have the same problem. Also with a Macbook Pro from 2020. I use an external monitor (Dell u2720q) with internal USB hub. This internal hub freezes USB 2.0 devices, even if they are directly connected to the Macbook itself. It happens very sporadically, depending on usage 2 to 4 times a day.

Reported a problem to Apple support and they were very helpful and communicative at first but are now very quiet and do not respond anymore. I think they suspect that there is a bigger problem, but that they are no longer allowed to talk about it from company policy.

https://discussions.apple.com/thread/251452032

https://discussions.apple.com/thread/251394605

https://discussions.apple.com/thread/251425231

https://discussions.apple.com/thread/251481838

https://www.reddit.com/r/mac/comments/gp5b1z/usb_20_issues_on_new_macbook_pro_13_2020/

Might have a new interesting finding here. I have had similar problems with wireless keyboard and mouse loosing connection through my USB-hub connected to my MacBook Pro 13 2015 model running Catalina 10.15.5.

I have the following externals connected:

• Dell 2719DM monitor HDMI connection - Audio line-out port (3.5 mm jack) connected to Logitech Z207 speakers
• TP-Link UH720 7 port USB 3 hub with external power and 2 charging ports with the following connections:
• Logitech C930e Business Webcam direct USB 2 cable (USB 3.0 ready)
• Jabra Evolve 20 MS stereo headset direct USB 2 cable
• Logitech MX Keys keyboard connected via Logitech Unifying receiver
• Logitech G603 mouse connected via Logitech Lightspeed receiver. The G603 has the 1st gen. HERO sensor (not the 2nd gen. HERO 16k sensor). There is a 32-bit ARM processor in this mouse to.

The MacBook have lost connection with mouse and keyboard almost daily and sometime more frequently.

After reading about some others having problem with the Logitech Lightspeed receiver I disconnected it from the USB-hub and connected the G603 via Bluetooth instead.

So far so good and no lost connection.

Don't know is this helps any of you with the newer MacBooks though.

I kindly ask you to open a support case at Apple Support. I did it for all our 5 MacBook Pro 16" showing them that all our SSD hubs have these USB bus errors.

I can still say there is something strange going on in software.

My SSDs habe an integrated HUB with a 3.1 Gen 2 VIA VL-822 Chip.

1. The SSD devices work with same MacOS on 15" 2019 model.
2. The SSD devices work with Windows 10 on same machine.
3. The SSD devices work if I connect an older VIA VL-817 USB 3.1 Gen1 Hub in between MacBook and the SSD device.

They need data reports and information that they will query in a remote session. Tell them you insist on a data analysis of this bug so they don't block you in frontline. I insisted on a escalation as soon as I explained the things I found out. But I had to explain 2 times.

Could the issue be as simple as using the wrong USB-C to USB Adapter, or at least, a USB adapter somewhere in your setup that the MacBook Pro (13-inch, 2020) doesn't agree with?

For example, in our setup, we're using an £8.49 Nonda USB-C to USB 3.0 Adapter between the Wacom Intuos Pro Medium tablet and the USB-C port on the back of the 21.5-inch LG UltraFine 4K Display.

Maybe the problem would be solved by using a £19 Apple USB-C to USB Adapter?

I recently purchased a new MacBook Pro that uses USB-C ports I purchased a USB to USB-C adapter and also purchased a USB b to USB-C 2.0 cable. Both return the following that the Lavry AD11 is operating in USB 1.0 with transfer speeds UP to 12 Mb/s on my old MacBook the AD11 runs at the USB 2.0 transfer speeds up to 480 Mb/s? What can I do to get this device to show as a USB 2.0 device? Also this is a replacement MacBook the other out of the box SMC issue and battery wouldn’t work diagnostic showed this and had to go back then the replacement has issues with USB devices and not recognizing them as USB 2.0 devices limiting transfer speeds. I’m considering a refund and return too many problems.

This problem is definitely related to newer Macs.

I have a USB-c hub that was working well up until a couple days ago on a Mac Pro Late-2019

No it does not show up on the system report - and does not work.

When I take that same hub and connect to a 2019 MacBook Pro, with USB-c then it does show up on the system report.

This the 2016 MacBook report. The Mac Pro Late 2019 was posted earlier

It's not just 2020 MacBook Airs. I have a 2017 iMac 27" that I just got. It has a fresh install of Catalina 10.5.5 on it. It had High Sierra on it but I upgraded to Catalina and had these issue, so I reinstalled Catalina from Recovery mode. And I get the same problem with my old USB 2.0 external drives. It seemingly will do fine for a while but at some point the screen stops responding, background goes black, eventually the screen goes blank (but backlight is still on). I have been using ssh from my other Mac to login in and do a reboot via Terminal to fix it.

But if I disconnect the drives, no issues. It'll go days and no problems...until I reconnect. Then at some point (usually a few hours later), the freeze ups happen again.