Is Mac Mini or OS causing intermittent internet connection loss?

Starting a few weeks ago, I began to have a problem with my internet connection. Perhaps 7 – 10 times a day, I would lose my connection. The problem would typically resolve itself in 2 – 3 minutes. It was during a time of heavy rain and so I thought it was likely a problem with the line somewhere outside. I called my internet service provider who sent out two technicians on two different days. After the work was finished on the second day, I received a text saying that the problem had been fixed. But within an hour, the problem was back.


I called my ISP back and they ran additional diagnostic tests from their end and determined that my modem was bad and needed replacing. Accordingly, they sent me a new one which I have installed. However, it was not long before the same problem resurfaced.


Given that my ISP has looked at and worked on the line coming into my apartment and that I do now have a new modem, I am wondering if there might be a problem with my M4 Mac Mini. It is only 6 months old and has been working fine. I have not updated or installed any new software. I am currently running macOS Sequoia 15.6.1


Does anyone have any ideas as to what the problem might be or what I might try?

Mac mini, macOS 15.6

Posted on Jan 17, 2026 2:57 PM

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Posted on Jan 17, 2026 3:28 PM

The Mac mini's wireless Wi-Fi and Bluetooth antenna is located under the bottom cover, which makes the reception prone to interference from high speed USB drives, poorly shielded USB cables and other devices that emit a high EMF like speakers, a cordless phone base, etc....


For an Apple support article that confirms and suggest solutions for this issue:

see > Resolve Wi-Fi and Bluetooth issues caused by wireless interference - Apple Support


If you have USB devices connected to and/or in-between the Mac mini and Wi-Fi router..?

1) Disconnect all USB devices, connect them one at a time and test.

2) Move all your USB devices to one side or behind the Mac mini and test.

3) Replace any thin poorly shielded USB cables with shielded cables and test.

4) Stand the Mac mini on it side with the bottom cover facing the Wi-Fi Router and test.


To view a similar thread in the Mac mini section of the forum:

see > Mac Mini M2 Wi-Fi is slow and stutters - Apple Community

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Question marked as Top-ranking reply

Jan 17, 2026 3:28 PM in response to ts1722

The Mac mini's wireless Wi-Fi and Bluetooth antenna is located under the bottom cover, which makes the reception prone to interference from high speed USB drives, poorly shielded USB cables and other devices that emit a high EMF like speakers, a cordless phone base, etc....


For an Apple support article that confirms and suggest solutions for this issue:

see > Resolve Wi-Fi and Bluetooth issues caused by wireless interference - Apple Support


If you have USB devices connected to and/or in-between the Mac mini and Wi-Fi router..?

1) Disconnect all USB devices, connect them one at a time and test.

2) Move all your USB devices to one side or behind the Mac mini and test.

3) Replace any thin poorly shielded USB cables with shielded cables and test.

4) Stand the Mac mini on it side with the bottom cover facing the Wi-Fi Router and test.


To view a similar thread in the Mac mini section of the forum:

see > Mac Mini M2 Wi-Fi is slow and stutters - Apple Community

Jan 18, 2026 8:25 PM in response to den.thed

4) Stand the Mac mini on it side with the bottom cover facing the Wi-Fi Router and test.

This seems to work. I have had my computer on its side all day and moved it to the opposite side of my monitor, which places it a few inches closer to my modem. The only time I lost my internet connection today was when I laid the computer back down flat to see if having moved it somewhat closer to the modem was enough to resolve the problem. However, I lost my connection almost immediately.


What was curious is that when I put my computer back on its side, the problem did not go away. I continued to experience an intermittent loss of internet connection until I finally rebooted the computer. Since that time, I have not had any further loss of connection.


In the discussion thread titled Mac Mini M2 Wi-Fi is slow and stutters that you suggested, Old Toad recommends putting feet on the bottom of the computer to allow more room for Wi-Fi and Bluetooth signals to reach the antennae. I will try this and hopefully it will allow me to lay the computer down flat again.


Thank you, den.thed, for your help!


Jan 18, 2026 8:29 PM in response to HWTech

Only update to 15.7.3 Sequoia. Upgrading to 26.2 Tahoe may cause other problems and you may not be ready for Tahoe yet. Stay on Sequoia until you figure things out.

I did upgrade to 15.7.3 last night and was thinking about making the jump to Tahoe 26.2 tonight, but your suggestion makes sense and I will wait.

Jan 18, 2026 9:27 PM in response to ts1722

ts1722 wrote:


Only update to 15.7.3 Sequoia. Upgrading to 26.2 Tahoe may cause other problems and you may not be ready for Tahoe yet. Stay on Sequoia until you figure things out.
I did upgrade to 15.7.3 last night and was thinking about making the jump to Tahoe 26.2 tonight, but your suggestion makes sense and I will wait.

Do your own research into Tahoe before you upgrade. Make sure you understand all of the changes in Tahoe and make sure all of your third party hardware & software are compatible with Tahoe.


The most divisive aspect of Tahoe is the Liquid Glass look and the extreme rounded corners of app/document windows. Those exaggerated curves are very shocking at first. You do get used to them at least when the windows are maximized, but they will be noticed especially with the scrollbars and also in other ways. I don't like the shading for the sidebar in the Finder, very irritating to me personally.


Other common dislikes are the various graphical glitches related to all the forced transparency even when macOS is configured with the "Reduce Transparency" option enabled in the Accessibility System Settings (Display subsection). You notice it most often when scrolling goes beyond the viewing window. A glaring example is scrolling the left pane of the System Settings itself. Here is a screenshot of System Settings where the left pane is scrolled up & overlaps with the System Settings search field.....you can also see the more extreme rounded corner as well although it may not be as shocking in such a small screenshot. You can also see the rounded shaded area for the left pane (it is very faint here...maybe the last update lightened it). Notice how the search bar is nearly impossible to even see. This scrolling overlap occurs in the Finder and other apps as well. How Apple let this through to the public is beyond me especially when the Liquid Glass visuals are supposed to be Tahoe's big thing, yet visual issues like this exist. Sometimes buttons blend into the background until the cursor is hovering over them to make them stand out a bit (may be slightly better with macOS 26.2 now).





The other common issue is that many people find they need to user better quality cables to connect their external displays....cables need to be less than 1 meter in length and be high quality whether they are USB, Thunderbolt, or HDMI.


Plus some people report issues access DMG archives, especially encrypted DMG archives.


Read up on some of the reviews to understand the changes and check what issues others may be reporting with the critical third party hardware & software you require. If you have enough Free storage space on the internal SSD, or if you have a spare external USB3 SSD, then you can install Tahoe on it & test things out before you take the plunge to upgrade your main Sequoia boot volume. Just make sure not to store any critical information on the Tahoe test system, or at least make sure to transfer those items to the Sequoia system.


Most of the main launch day release issues associated with Tahoe have been dealt with in macOS 26.2, especially the memory & storage management/release issues which I also personally experienced with the earlier versions of Tahoe.


Most issues you will experience with Tahoe now will be due to issues with third party software so make sure you are running the latest versions of those third party apps.


I'm still running macOS 13.x Ventura on my main work laptop, but will need to choose whether I go with Sequoia or Tahoe. Still haven't decided since there is only one work related thing which may force me to choose Tahoe...maybe I can wait & hope macOS 27 will improve my current dislikes associated with Tahoe. Most third party developers support the three most current versions of macOS so you have time to decide, unless something requires you to upgrade to Tahoe. And make sure you have time to get acquainted with the new OS in case you encounter any problems. Don't upgrade when you have critical jobs to perform....wait until anything critical has been completed. And make sure to have good backups....you should always have frequent & regular backups anyway.

Jan 17, 2026 4:14 PM in response to den.thed

How can I tell if my cables are shielded?


I only have two devices directly plugged into my Mac Mini.

1) Dell monitor connected by USB-C. The cable is one supplied by Dell, so I imagine it is high quality.

2) External speakers plugged into the front headphone jack with an admittedly inexpensive cable.


Additionally, I do have an external, time machine hard drive that is connected to the monitor's USB hub. I have just temporarily disconnected and removed it to see if it might be the problem. I have also sat the computer on its side with the bottom facing the Wi-Fi modem.


The computer does sit right next to one speaker and the time machine drive. For now, I will leave the speaker where it is at and see of if sitting the computer on its side and/or moving the external hard drive clears the problem.

Is Mac Mini or OS causing intermittent internet connection loss?

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