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Super slow wifi on Mac mini M1



Seems to be a recurring problem, is there a fix? Can't believe a brand like Apple could have such blatant problems.

I have a high speed 5G internet connection. But in my study, my Mac mini M1 (OS 12.3) drops to between 5 to 30 Mbps, which constant and huge variations.


If I put my MacBook Air right next to it, or my phone, I get 5 times that amount. Again, exactly in the same place. The problem is not the router, the distance, it's the Mac mini 1. See picture (and I was lucky to get 32 on the Mini, it's usually lower).

What's going on? Is there a fix? I don't have to have a Mac in my study so am very close to selling for something that works.

Posted on May 31, 2022 1:31 AM

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33 replies

Jun 20, 2022 1:47 PM in response to jbcortes

From what I'm reading a lot in this community and across the Internet, I've just joined the Mac Mini wifi h*!! group, hmmmm.


I have a 2017 MacBook Pro that works great, was planning on adding a newer M1 Mac Mini with dual monitors as my trading platform (pain to use 2 monitors w the macbook and nice to keep travel LT and trading separate).


House wifi setup is a new TP-Link AX21 (1800) Wifi 6 router with a TP-Link RE603X mesh repeater, both have been working flawlessly. I've tried the scenario below with the mesh repeater both on and turned off, no difference.


So a friend loaned me a 2020 M1 mini reset to factory specs, then I did a complete new Monterey install, installed all new software and finally was up and running, sorta. Both MacBook and Mini are Monterey 12.4.


Macbook works fine, getting 150/120 Mbps download/upload consistently, doesn't change much with or without the repeater.


Mini on the other hand is almost useless, getting .05 Mbps/12Mbps download/upload consistently today (Yes .05 Mbps!), somedays it's a lot better, up to 2 Mbps download.


Both are sitting on the same desk 3 feet apart. Macbook shows an RSSI of about -40 dBm, Mini has an RSSI between -59 and -63 dBm, both are on the same 5 Ghz channel.


So any feedback from Apple on a solution for this? Seems to have been going on for several years.


Anyone have any luck adding an external USB wifi adapter, I'm looking at the AC600 or AC1300 perhaps if their drivers will work on M1 Monterey 12.4.

Thanks

Jun 22, 2022 5:49 AM in response to hcsitas

I'm not saying "the Mac mini doesn't work", I'm saying "the Mini2018 has sub-par wifi performance when challenged". And I'm pretty sure it's not only my model (speculation), but just the design. "Mac mini M1 wifi problem" was almost an internet trend when the machine was released...


In any case, based on MY testing of 4 recent machines which I'm sure all work as intended, the Mini 2018 was the worst with difficult wifi reception, when iPhone, MacBook Air and iMac24 delivered excellent performance, with the latter delivering the best performance.


Installing Monterey on 3 machines positioned in exactly the same place connected to the same router quite far away (so not a great RSSI) took 3h50 on the Mini 2018, 1 h on the iMac 2020, less than 10 minutes on the Imac24. I didn't test the MacBook Air but results would have been closer to iMac24 performance.


These conclusions, again, are only valid with difficult wifi conditions. In the router's room or in the next room (assuming one doesn't live in a bunker), the differences would still be there, but much less dramatic. I measured the Mini 2018 in the same room as the router and it delivered perfectly fast connection.


These are my conclusions, and people can obviously do whatever they want with them.




May 31, 2022 4:13 AM in response to hcsitas

It is my own router. I don't have fiber and needed a good connection, so I just bought it, it's a 5G router.


But if it's the router, why are the MacBook Air and iPhone in the exact same location as the Mini (and I mean, the EXACT same location) showing more than a 100Mbps download speed, when the Mini averages 10?


Thanks anyway for your help.



May 31, 2022 5:03 AM in response to jbcortes

With such a low signal level, speeds can easily vary a lot from just really slow to a snails pace. With it so low, even with what could be considered minor interference can wreak havoc on the data reception.


The options would be to run a hardwired ethernet connection or move your router to a different location to improve the signal.

Another option is scattering a few WiFi extenders around your residence to get a little better signal.

May 31, 2022 6:26 AM in response to woodmeister50

Thanks. What I can't understand is why the MacBook Air and the iPhone, in the same location, are consistently 3 to 5 times faster.


The low signal itself is not a problem, it's normal since I'm far from the router. In the other room I have 500Mbps. In my study around 60-100 with the MacBook Air and iPhone, and 10-30 with the Mini.


I just did a video call from my desk (where the Mini sits) from the MacBook Air. No problem at all. From the Mini, it wouldn't have worked, yet they are next to each other. There's a problem with the Mini. This is the inconsistency I'm trying to solve. Yes I could add a repeater, but wouldn't need to if the Mini worked as it should.


Or is it that the Mini, being relatively cheap, has a s**t wifi, and IS working as it should?

May 31, 2022 7:59 AM in response to jbcortes

Ok I solved the problem... by realizing it can't be solved.


I moved the router much closer to check for bugs and things work fine. The Mini M1, when close to the router, works fine. But when challenged with a bit of distance and thick walls, the M1 crumble when the MacBook Air M1 and the iPhone 13 keep going and still pull satisfying measurements for everyday use, even with an RSSI of - 85-89dB.


So the reality if the Mac mini M1 has a much lower quality of wifi antenna/reception than a MacBook Air or an iPhone 13. It's as simple (and annoying) as that. Wish I'd known that before buying one.

Jun 22, 2022 4:34 AM in response to kudzu1953

I ended up giving up on the Mini. I realized my problem was due to my Mini M1 being a 2018 model with Wifi5. I tried a 2020 model (wifi 6) in the same place and things were acceptable, though not great. An iMac 24 solved it, delivering up to 6 times more data per sec than the Mini 2020.

For me the Mini is sub par and has design problems regarding connectivity. People who are close to their routers won’t realise it.

Jun 22, 2022 8:08 AM in response to hcsitas

If you use a search engine and search for this problem, you'll find this thread and numerous others in this community, along with numerous postings on reddit and other places with the same problem going back for at least 4 years. All this suggests it's not a service issue or else there should have been a recall with so many problems.


Not a helpful response at all.

Jun 22, 2022 8:25 AM in response to hcsitas

Sorry I offended you, but your answer about speculation and service doesn't match up with all the people who are having this problem, with numerous questions in this Apple Community. When numerous fairly technical folks have documented the testing and changes they have done, it's not a helpful answer.


https://www.google.com/search?client=firefox-b-1-d&q=slow+wifi+for+mac+mini



Jun 22, 2022 12:57 PM in response to hcsitas

So has anyone tried an external 3rd party USB wi-fi gain antenna? Across all the various discussion in this Community about the poor performance and/or interference with Apple's built-in antenna, I haven't come across this as a possible solution yet. I just used my last external antenna to fix a problem for someone else, haven't ordered a spare yet.


Thanks, M

Jun 22, 2022 1:19 PM in response to kudzu1953

With your RSSI, you should have a much better connection, even though a lot of Minis seem to have problems with wifi. Can't you get yours fixed? Your figures are really bad, much worse than mine. Don't go spend more money on accessories which might or might not work when you have a not inexpensive machine which should work in the first place.


Jun 22, 2022 11:09 PM in response to kudzu1953

What you describe is not encouraging. It hints at wild variations between Minis, and an almost certain structural problem that Apple still hasn't acknowledged or identified. The Mini you borrowed, contrary to mine, falls into the realm of "faulty". Mine wasn't faulty, it just sucked.


I'm personally off this machine because it doesn't compare well to other Apple devices regarding connectivity, but a new Mini should still work in the set-up you describe. I think your friend might have been particularly unlucky when he got his.


If your plan was to buy a new one from Apple and it doesn't work, you could return it, so you're not taking a big risk.


But if your plan was to buy a second-hand one, my advice would be: don't. Or test it carefully in your home first.


I realize if you need two monitors and want to stay within the Apple ecosystem, you're kind of in a bind. If you could live with one monitor only, the iMac 24 is a very different, and much better, machine. Again, I'm just talking about connectivity, the Mini does the rest well.

Super slow wifi on Mac mini M1

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