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

Subject says it all for the most part. I have an external USB hub connected to one on my Thunderbolt 3/USB-C ports on my MacBook Air early 2020 model running Catalina 10.15.4. At random times during the day (2-3 times a day) my Logitech G602 mouse and external Apple Keyboard will stop responding completely and only a reboot will restore functionality. The USB 2.0 HUB under System Information->Hardware->USB completely disappears until the MacBook is reported. Disconnecting/reconnecting the USB Hub does not resolve the issue. I have attached a screen capture of what the USB device looks like normally when things are working correctly. This MacBook Air has replaced a late 2019 MacBook Pro that was running Mojave and then Catalina 10.15.4 for the last 2 days of use. Using the same USB hub and external devices I did not experience this issue with that configuration. Granted I only was running Catalina for 2 days with the MacBook Pro 2019.


Things that I have tried to resolve the issue. Looking for additional suggestions to fix or troubleshoot the issue. I feel that my new MacBook Air is a big paperweight at this point.


  1. Reset NVRAM
  2. Reset SMC
  3. Startup in Safe Mode
  4. Ran Diagnostic check that came back clean.


Posted on May 11, 2020 10:38 AM

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Posted on Jun 17, 2020 2:37 PM

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!

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Jun 17, 2020 2:37 PM in response to Retens

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!

May 12, 2020 5:20 PM in response to raina_b22

Hi Becky, thanks for the reply and the suggestions. I did review If your Apple wireless mouse, keyboard, or trackpad isn't working with your Mac as expected but nothing suggested in the article seemed to help.


Some more background, I was using Time to Machine to backup my older 2019 MacBook Pro so I used the Migration Assistant to move or restore my Documents, Files, and Applications to my new MacBook Air 2020. At the time, my 2019 MacBook Pro was running Mojave.


Earlier today I noticed an older version of the Logitech Unifying Software was installed under Application->Utilities (ver 1.2.359). This version seems to be from 2014. Not even sure how this version worked with Mojave. In ny case, I removed this version from my MacBook Air and am now just using a generic Bluetooth mouse to test with since I believe the Logitech G602 mouse and the Logitech Unifying Software ver 1.2.359 is the culprit. If all goes well with the generic Bluetooth mouse and my Apple Keyboard doesn't stop responding then after a couple of days I will re-add the Logitech G602 mouse back into the picture and install the recommended Logitech Unifying Software ver 1.3.375.


If the issue should return after doing this I will most likely resort to reinstalling Catalina from macOS Recovery.

Oct 28, 2020 10:57 AM in response to Retens

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.


Jul 9, 2020 2:48 PM in response to chrisfromguildford

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.


Jul 10, 2020 1:15 AM in response to Jak0ps

It speaks volumes that more than 2 months have passed since this issue was first announced by users in reddit threads, and close to a month since many web articles were written about it, popularizing it a bit more. In this time Apple have not issued any statement, or even a small hint that any fix is on the way. Users are left to deal with this on their own, while I hear increasingly more stories of them being told "the usb hubs are the problem" or "the devices are the problem".


This is a blatant lie since many of us have tested all of the hubs with other laptops - including Macbooks from other generations! Old macs, 2016 macs, 2019 macs, and many more in between. The ONLY laptops suffering from this problem are the 2020 models.


Furthermore, I have thoroughly tested for the problem using Apple's own MV adapter and also their USB-A to USB-C adapter. So, their own hub and adapter, which they sell themselves and call official Apple accessories, have the same problem, but somehow magically work on all other mac models. Our devices are also tested - new and old USB 2.0 mice, keyboards, sound cards, external drives, and whatever you can think of. All of them work 100% OK on other laptops and older macbook models, but not on the 2020 models.


The issue is more than clearly a problem of the 2020 models and we, the users, have proven this to ourselves already. The reddit thread with the most activity is getting daily reports from new users finding out about this issue.


So it is very hard to understand how this position can be defended in favor of the brand - considering how expensive the laptops are. How can anyone stand by that kind of attitude towards the customer?


We are left to figure out a solution on our own, that's all I can see so far.


Gladly, there are couple of solutions - using specific OTG adapters and using the CalDigit TB3+ dock (which is very expensive). But this is a workaround! Not a solution! You should be able to use USB hubs -that's how Apple designed their laptops from 2016 until today! Their own USB hubs do not work with the 2020 models. Will they say their own accessories are not supported? Because I can't figure out how that makes any sense.

Aug 16, 2020 10:57 PM in response to sanjnin

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.

Oct 2, 2020 8:29 AM in response to J46256

There's an article by Gadgets 360 entitled "MacBook Pro, MacBook Air 2020 Models Plagued by USB Connectivity Issues, Some Users Report" dated June 19, 2020. They say the reports say that the USB 2.0 devices randomly disconnect via both hubs and adapters. They said that an Apple Community Specialist recommended reinstalling macOS to resolve the problem, but that Apple was yet to provide an official fix. They said they had reached out to Apple for a comment on the matter and would update their site when Apple responded. It is now October 2.

Oct 15, 2020 10:31 PM in response to Retens

Hi guys,

I'm using MBP 14,2 (13" 2017, 4TB3) and I'm using usb-c hub to connect the logitech MK235 dongle.. first, it didn't response with anything its understandable because this MK235 didn't design for macOS, so I download option from logitech webisite... installl it and it did connect but disconnect interminently, and the weird part is the connectivity only reach 1 meter, when I move away from the laptop the connection lost...

then I search the web and found an article that says USB 3 fast data transfer did generate interference with wireless devices.. so I plug in an extension cable to the usb-c hub and at the other end of the extension cable I plugged in my MK235 dongle... now its working flawlessly....

I'm typing this with the new MK235 keyboard..

hope this can help others that faces the same problems...

Jun 24, 2020 3:20 AM in response to klaas226

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?


May 12, 2020 11:26 AM in response to Retens

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!

May 19, 2020 7:59 PM in response to Retens

Just to close the loop on this. There appears to be compatibility issue with Catalina and the Logitech Unifying Software and driver for MacOS. Even after updating the Unifying driver to the latest version on Logitech's website the Logitech Unifying Software still does see the Logitech G602 mouse. It doesn't look like Logitech has updated the driver software since 2018. I even tried the Logitech Unifying Software on another MacBook running Catalina and the software on the other MacBook also did not recognize the Logitech G602 mouse. I even tried updating the firmware on the Logitech Unifying receiver that came with the Logitech G602 mouse but it would not recognize the receiver USB dongle. MacOS Catalina does see the mouse as a USB Receiver HID device so the mouse does work. It just goes unresponsive and disappears every few hours. I did not see this behavior with Mojave with this same mouse. I have not tried reinstalling MacOS Catalina at this point since I have moved on with a generic Bluetooth mouse at this point. But, this just appears to be a device capability issue with Catalina.


Suggestion to Apple: I'm not sure if Apple has a hardware certification program like Microsoft but that would be a great thing to have. That way a user could verify if a 3rd party device, such as a mouse or keyboard, has been certified to work with a particular OS version. Logitech claims Catalina is supported but it would be helpful if they actually had to certify their devices to make that claim.



Jun 18, 2020 10:15 PM in response to Retens

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.


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

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