Mac Mini M2 wifi issues

I think the main issue is that the HDMI cable, it any cable going into the Mac Mini M2 (or PRO) is too close to the radio receiver.

I use two screens. One is connected with HDMI, and the other with an HDMI to USBC cable. So far, going on for 2 hours, I have seen no drop immediately. I will revisit this reply in the next few days to update if there has been any change

Hi HaffiOConnor

You're right, its not the HDMI cable that is the culprit here. But for me, and my personal MMM2, so far switching the display cable from one place to another has helped. I use fast.com for my testing as it is morte stable and less adds than Ookla's test.

This may not be a wow speed for most of you, but considering it's stable at this speed over WiFi is a godsend for me and my work. (If the screenshot doesn't appear, its 240 Mbps)

it's the hdmi cable. unplug it, use a hdmi-usb c adapter and problem solved. mine went from unable to connect to 5ghz network to 600 Mbps speeds for download and upload after using the adapter. also, it's very sensitive to interference. speed drops to half if the power cord is bent near the mac mini.

Although I'm sure poorly shielded video cables (of any type, not just HDMI) can cause Wi-Fi interference issues, this doesn't seem to be the only cause for everyone. I tried all combinations of cables and ports, including using none at all, during my troubleshooting, and it made no difference to my Wi-Fi issues.

MacOS 13.4 fixed the issues for me the instant I installed it, but oddly, in the last two days, some of my issues have started re-appearing, even though nothing has changed. I'm starting to get frequent ping spikes again - although not exactly the same as before.

I am a network specialist(CCIE) plus and Apple support specialist and also work with wifi over 20 years, there is something going on with this chipset/drivers on wifi6E , I work as a cisco partner helping lots of customers and have now spent hours and hours on troubleshooting.

Result is

Problem is mostly on 5ghz, on 2,4 band its does not seam to bother normal users.

auth for 802.1x is worst, psk is beter.

We have tested many other mac with non wifi6e chipset including m1pro, problem is not there , so this is the wifi6e, 100% , I have not contacted apple since I am in Iceland and covarge there is hard to get. I have opened cases with cisco wich all point towards client. Hoping Apple will get their act togather ans fix or replace these.

how did you do that? its only available if its connected to a wifi6E network in which case this problem does not happen on any of the machines I hvae testes ie on 6ghz band, so for us disabling that forces the computer to use 5ghz and we in same problem, main problem is 6E chipset running on 5ghz networks

No, in the wifi settings on my Mac. I have a previous post in this thread where I did a step by step. I noticed that when my Mac would try to connect or look for the 6GHz band it would loose connection. So I stopped it from looking. It has seemed to work so far.

I have the same issue! I thought I fixed it but it happens everyday. It connects then shortly later it will disconnect itself and reconnect back again. Or it will say it is connected but unable to reach the internet and it so annoying to repeat the same thing resetting the router everytime this happens just to get connected. My phone and other devices works so fine except for mac mini 2. I just bought this mac mini April 28th and right now I’m thinking of returning it…

That is only possible on a WIFI6E network ( like I stated in prev post ) on Networks that dont support this ( which is the ones I am refering to and lots of ppl here, you cannot disabled this.

So Like I wrote, not possible on a 5GHZ or 2.4 GHZ network.. ( only 6GHZ ).

I have also experienced the same issue, and even after upgrading to the latest version, it still occurs after a while. I suspect it's a problem with the HDMI connector because when I touch the HDMI connector, the signal improves, but the problem occurs again when I let go.

So, I switched to using a TypeC to HDMI cable to avoid using the HDMI interface.

It has been more than two days since the switch, and the problem no longer occurs. Moreover, I have tested the ping response speed, and it has become faster and more stable, without any sudden spikes in response time.

The above approach is provided for reference.

Hi Manusagar,

I just installed Deco Wifi 6E Mesh in my house and im having same issue, mac mini M2 Pro connect to 6E network but after 1 hour approx. Mac disconnect from network and i can not find 6E network listed on wifi list :(

I bought an M2 Pro in March and experienced the same wifi and bluetooth issues discussed here. I exchanged it for a different one and while the problems persisted, it wasn't as bad as the first Mac mini. Using two Samsung 4k monitors with Spectrum 500mbps wifi, I was getting between 15-125mbps. My old MacBook Pro on the same desk would get upwards of 450mbps. After reading that some had success with swapping out the HDMI cables to new ones, I went to Amazon and purchased one 8k HDMI cable (into an 8k HDMI port) to see if that made a difference. Lo and behold, swapping one of the HDMIs upped my wifi speed to 250mbps. Seeing that that improved speed, I purchased one more matching 8k HDMI and now get consistent 450mbps wifi. I have not done a packet loss test or anything as it seems to have fixed the problem. I would highly recommend everyone experiencing problems upgrade their HDMI cables.

Could you do an experiment, cwedits? Could you somehow ground the HDMI cable’s sheath by either touching and holding the sheath with a finger or by attaching a grounding cord/wire to the sheath while doing Wi-Fi speed tests? One theory is that improper shielding is causing Wi-Fi interference from the HDMI connection of the M2 Mac mini.

I have the exact same problem on 2023 MacBook Pro 14. I got a replacement from the Apple Store and I still have the same issue with the replacement as well. I have a M2 MacBook Air and M1 MacBook Pro 13 and never had this issue. The M2 MacBook Air and M1 MacBook Pro 13 also uses Wifi 6(802.11ax) so I don't think that's the problem.

@dennis_hackethal were you able to find any solution?

Hi, I've been using the same TypeC to HDMi connection since I had my machine. The issue will occur, maybe not as often as HDMI to HDMI (I haven't tried), but it will disconnect on average every four days.

Deco M9 Plus, 2.4ghz and 5ghz (printer only supports 2.4ghz). I tried 5ghz only, but the same issue occurred.

After calling Apple's support, I'd linked them this thread, still no acknowledgement of the issue on their part.

Have provided them with the wifi diagnostics.

Taking the macmini into the applestore tomorrow.

Will see how it goes