akg78002 wrote:
<EtreCheck Report.log>
Report attached. Greatest appreciation for any help.
Sorry about the length of this reply but there is a lot in your Etrecheck that is worth exploring further.
“Kernel panics - This system has experienced kernel panics. This could be a sign of hardware failure.”
But kernel panics can also be caused by attached peripherals. There appear to be a number of devices (hubs, adaptors …) attached to your ports. To troubleshoot, disconnect as many as you can (this is a temporary diagnostic step) and then see if that affects the crash during sleep.
“Kernel Extensions: /Applications/MATLAB_R2025b.app [Not Loaded] sldrtkrn.kext - com.mathworks.sldrtkrn (25.1.0 - OS X 10.8)”
This looks like Mathworks’ Simulink Desktop Real-Time (SLDRT) kernel component, but I believe this is not the latest version. I believe there is a 2025b and 2026a version, both of which feature “bug fixes” and “compatibility considerations.” Not sure if this is related to what you are seeing, but this is a kernel extension and they are known for creating panics, freezes, etc. if not updated, especially as you are running the very latest version of the MacOS.
“2026-07-10 Microsoft_Defender_101.26030.0000_Individuals_Shim_Installer (101.26030.0000) – Installer”
You appear to have disabled the MacOS built in security and installed Microsoft_Defender, which has created problems reported in Apple Discussions for other users. I would suggest completely uninstalling Microsoft_Defender.
“[Loaded] com.citrix.ctxusbd.plist (Citrix Systems, Inc. - installed 2025-04-08) Executable: /Library/Application Support/Citrix Receiver/ctxusbd
[Loaded] com.citrix.ctxworkspaceupdater.plist (Citrix Systems, Inc. - installed 2025-04-08) Executable: /Library/Application Support/Citrix Receiver/ctxworkspaceupdater”
“[Running] com.citrix.ReceiverHelper.plist (Citrix Systems, Inc. - installed 2023-01-11) Executable: /usr/local/libexec/Citrix Workspace Helper.app/Contents/MacOS/Citrix Workspace Helper
[Running] com.citrix.ServiceRecords.plist (Citrix Systems, Inc. - installed 2023-01-11) Executable: /usr/local/libexec/ServiceRecords.app/Contents/MacOS/ServiceRecords”
“[Running] com.citrix.safariadapter.plist (Citrix Systems, Inc. - installed 2023-01-11) Executable: /Library/Application Support/Citrix Receiver/SafariAdapter.app/Contents/MacOS/SafariAdapter”
What is this citrix installation? Is it for a managed Mac, say for an employer? Is it some sort of endpoint security or external management installation? I don’t know much about it but it seems to be making external connections, if those are active even during sleep, they could be related to your sleep freezes.
“[Loaded] com.starstechnologies.updater.plist (Rational Intellectual Holdings Limited - installed 2025-04-08) Executable: /Library/PrivilegedHelperTools/com.starstechnologies.updater”
This looks to be some sort of online gaming setup, what is it? I think it also phones home and that kind of background activity during sleep can cause conflicts or freezes.
“[Running] com.brother.LOGINserver.plist (Brother Industries, LTD. - installed 2019-09-02) Executable: /Library/Printers/Brother/Utilities/Server/LOGINserver.app/Contents/MacOS/LOGINserver”
This looks like a very old installation of something for a printer that connects to a remote server. Should it be updated, old versions might be incompatible with Tahoe.
“[Loaded] org.macosforge.xquartz.startx.plist (Apple Inc. - XQuartz - installed 2016-10-26) Command: /opt/X11/libexec/launchd_startx /opt/X11/bin/startx -- /opt/X11/bin/Xquartz”
I think xquartz is an outdated tool that was used many years ago for graphics applications. I don’t know if what you have is even compatible with Tahoe.
You have multiple cloud services (Dropbox, Microsoft One Drive, Box …) active. That should be ok but I am wondering if they might be stepping on one another in some way. These types of cloud services will often check online even during sleep.
You mentioned that Apple had your system wiped clean some time ago but after that, if you bring back all these installations and peripherals, probably you brought back the thing(s) that caused the sleep crashes. And seeing things installed as long ago as 2016 makes me wonder how they are there after a complete wipe, unless you migrated them back, which sort of defeats the purpose of the clean wipe.
With all the above, I am wondering if you should uninstall as many as you can, disconnect all peripherals, run for a while to see if no more kernel panics during sleep. If not, then bring back your items one or two at a time to see what triggers it.
An alternative is a true clean wipe (erase, reformat) followed by migrating back ONLY FILES, nothing else. Then reinstall and reconnect things one or two at a time, and test after each.
Finally, kernel panics can be a sign of failing hardware. Apple can check your hardware, it is 5-6 years old.
