Can you use JUST wi-fi instead? that way you can help figure out if it is your internet or ethernet.
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Mac Studios with faulty ethernet ports? Internet connection disconnecting periodically
- Thread starter bananataffy
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This appears to be a driver issue from Apple's side and can be corrected unis the settings below that were reported by a user on Apple's forums and verified to correct the issue for me:
Thanks, I've had a lot of struggles getting the right setup with various quirky IT equipment (Fujitsu Scansnap, Elgato Key Light and Sky Set Top Boxes have been the big challenges). I also switched of IPV6 on the Mac Studio (using command line) which seems to have helped with the stability
I'd like to point out that I had this same issue and used this fix but didn't change the MTU from the default and it works fine. If I had to guess, it seems to be disabling the energy efficient ethernet setting that's key. It's the only setting I have different from what the auto mode was choosing.
Also I didn't have this problem with a wire directly to my router, it only started happening when I put a small D-Link switch in the mix that I use at my desk to connect several devices. So I suspect this is more than *just* a driver issue, could be a compatibility issue at the driver or hardware level, and it could be the mac or the other device it's connected to. I don't care enough about this energy efficiency feature to try to figure it out, good luck to anyone who tries.
Same here, well nearly - I also switched to 1GB while I was at it, since that's my network speed anyway. I didn't want to mess around with the other stuff unless it was essential, and so far it doesn't seem to be.
Now I'm having this issue 
Mac Studio Max base model, connected to a TRENDnet TEG-S762 10Gb switch, 5Gb Fiber internet. My connection just completely hangs up, sometimes it resumes after ~1 minute, but today I had to do a full reboot. Immediately after the reboot, I measured the full 5Gb speed via the Speedtest desktop app.
I feel confident it's the Studio, because I have another Mac right next to the Studio, connected to the same switch, and it has no connection issues while my Studio is "frozen".
Rebooting the switch does not help.
Mac Studio Max base model, connected to a TRENDnet TEG-S762 10Gb switch, 5Gb Fiber internet. My connection just completely hangs up, sometimes it resumes after ~1 minute, but today I had to do a full reboot. Immediately after the reboot, I measured the full 5Gb speed via the Speedtest desktop app.
I feel confident it's the Studio, because I have another Mac right next to the Studio, connected to the same switch, and it has no connection issues while my Studio is "frozen".
Rebooting the switch does not help.
just as aside, on the eero reddit forums, there's a mention that the latest eeros will momentarily 'shutdown' as part of their heat management strategy. most people will never notice it because their transfers never take hours to complete.
"They will insert small amounts of thermal quiet time into their radios (transmitting is more heat-intensive than receiving) and announce their metrics to the rest of the mesh as if the quiet time was busy time on those radios, causing traffic to choose other nodes if possible. If a node is really, seriously, intractibly hot (doesn't cool down with quiet time) then they will reboot into a state where they just hold with the radios turned off and the CPU held in reset; I believe they will turn the LED red (and they may blink it- I don't remember) until they cool down. This is vanishingly rare and usually only happens on nodes that have been, for example, covered with blankets or left on a windowsill in direct sunlight in Arizona or similar.
This "thermal latch" is implemented in hardware (the signal that controls it is called OMG_HOT) and was added to ensure that no eero could ever reach a surface temperature above 70 degrees C, even if sorely abused."
Based on other users here, I decided to change my MTU back to the standard value (1500) and haven't had any disconnects, so it seems increasing that value isn't necessary after all. My connection has been rock solid ever since making the other changes, however.
I will note that I have experienced this issue with my eero network, but it was prior to getting my Mac Studio. I've been using eero for the past 2 years or so. It was working perfectly until around the beginning of this year, where every 2 days, my main eero unit would flash red and it would require a network power cycle to fix. It was really annoying. But I have not experienced this issue during the past few weeks, so I figured eero pushed some type of fix through a recent update. Thanks for that explanation though, I was wondering why it kept doing that.
I will note that I have experienced this issue with my eero network, but it was prior to getting my Mac Studio. I've been using eero for the past 2 years or so. It was working perfectly until around the beginning of this year, where every 2 days, my main eero unit would flash red and it would require a network power cycle to fix. It was really annoying. But I have not experienced this issue during the past few weeks, so I figured eero pushed some type of fix through a recent update. Thanks for that explanation though, I was wondering why it kept doing that.
Pick one of the drop-downs here that doesn't say "energy-efficient-ethernet."
Also, the only two multi-gig devices I have are my Mac Studio and my QNAP NAS. The Mac Studio has the 10G ethernet port of course and my NAS has a 5Gbps port. When I connect both devices to the two 10G ports on my switch (the other four ports are 2.5G), I can saturate the 5G port when copying files from my Mac to my NAS, if I manually set the Mac's network speed to 5000Base-T as shown above. If I manually select 10GBase-T instead, the transfer speeds to my NAS drop to sub-1Gbps. So, at least with my switch, I have to be careful to manually select the network speed on my Mac that matches the max network speed of the other device connected to the 10G port on my switch, else the two devices and/or the switch don't negotiate the speeds correctly and default to 1G.
This seems like a switch issue, but I don't have any other 10G switches (or 10G devices, for that matter) to test out. I do have a 10G network card for my NAS on order so I'll try 10G again on the Mac when the NAS is also 10G...hopefully I'll get transfer speeds greater than 5G (I doubt I'll be able to saturate the 10G link).
Thanks! Real intuitive there Apple, he he says embarrassingly.
I only have 1G switches that don't support energy efficiency, so I haven't seen the problem. I have seen that cause problems where I work and with Windows machines. So I always disable it now.
Thanks for the tip, but it's an unmanaged switch. There are probably some other settings I could mess with but I have it working so I'll call it good for the time being.
Same issue here even after I upgraded to latest MAC OS yesterday. I am going to try disabling auto-negotiate and force 1gb and full duplex to see if it stops the network drops. Crash plan restore is taking days because of these network drops. I am also a Ubiquiti network user. Thanks! I can report back if this fixes it.
Dumb question, but have you tried turning off "energy-efficient-ethernet" and/or manually selecting your link speed as described a few posts above?
Well, I know I said it worked, and I'm pretty sure at least one other person suggested manually selecting the Mac's ethernet port settings worked for them.
The point to @rlinger was that it was worth trying those things if he hadn't already.
I found that turning off Energy Efficient Ethernet fixed the issue without having to change anything else.
I've had this ethernet connection issue since first turning on the Mac Studio (hard-wired connection), it would suddenly disconnect from the network between 6-8 hours of screen time use, a reboot would always fix the issue and so I would shrug it off thinking it was my ISP stumbling or something. Boy was I wrong and glad I found this thread.
So if I read all the posts correctly I need to turning off "energy-efficient-ethernet" to fix this issue? Can anyone confirm I read everything right?
Thanks in advance
So if I read all the posts correctly I need to turning off "energy-efficient-ethernet" to fix this issue? Can anyone confirm I read everything right?
Thanks in advance
I've been having an issue with intermittent packet loss on my ethernet (10 or 20 dropped pings, then it resumes normally for some period of time, maybe an hour or so; I haven't collected data on the timing), connected to a trendnet 1gb switch with a few other machines (separate subnet from the wifi). I've applied the manual hardware ethernet settings now and will see if that resolves things. Thank you to everyone who's posted those.
Edit: I haven't had any further problems (in these 10 days) after making those changes to the hardware ethernet settings.
Edit: I haven't had any further problems (in these 10 days) after making those changes to the hardware ethernet settings.
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