I am just trying to scan some documents at my home office to my Brother AIO. Trying to trouble-shoot, I realized something far worse - a block on using wired ethernet on my 'managed' device.

My hardware setup works great with my personal MBP via an external USB-C hub that has ethernet built-in. Has worked on a half-dozen different machines, including Intel Macs.

However, my institutionally 'managed' device cannot use the USB-C hub for network. It keeps giving me a 'self-assigned IP' outcome even tho everything is rebooted etc. It's running the same Mac OS (Ventura 13.6.1) as my personal device. Both are M2-series machines purchased this year.

What kind of 'management' settings prevents me from a wired ethernet connection? Or it is blocking ethernet to USB adapters?

We need more information.

For instance on my windows machine work, there is system level software installed that blocks anything plugged into the USB ports other than printers.

If there’s some kind of system, administrator person, you can talk to at work, why not ask them?

Where I used to work, machines plugged into the word network needed to be registered with IT and that included registering the hardware MAC address. If that was not in their database, the device would not be given an IP address within the managed range.

Nobody is blocking your network connection.

Some USB hubs require Ethernet drivers. You may have forgotten that you installed the driver on your personal Mac. Check the maker's site.

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JoeH
Where I used to work, machines plugged into the word network needed to be registered with IT and that included registering the hardware MAC address. If that was not in their database, the device would not be given an IP address within the managed range.

That's the ISE on the work network. Not applicable here.

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Tiangou
Nobody is blocking your network connection.

Some USB hubs require Ethernet drivers. You may have forgotten that you installed the driver on your personal Mac. Check the maker's site.

No, this USBC hub works without drivers.

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anonymouse1
We need more information.

For instance on my windows machine work, there is system level software installed that blocks anything plugged into the USB ports other than printers.

If there’s some kind of system, administrator person, you can talk to at work, why not ask them?

They are quite inaccessible, but I will put in a help desk call next week.

I suspect this is intentional.

If the USB port was blocked, the device wouldn't show up in your Ethernet settings. You've got something else wrong with your setup. The cable may not be connected properly or your router is set up with a limited DHCP range or you've got a manual Ethernet setting that's screwing with it.

Test your hub this way: Connect a flash drive through your hub. If they're blocking USB, you won't see it mount or appear in the Disk Utility.

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Typically the network adapter wouldn't show up if it was being blocked. Seems more like a network or configuration issue at first glance.

You can go to System Preferences and then search for profiles and click on that. You will see a list of all the institutionally installed configuration profiles which could be adding or blocking functionality. You can double click on them and it will tell you want settings are being changed.

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C(-)ris
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Tiangou
If the USB port was blocked, the device wouldn't show up in your Ethernet settings. You've got something else wrong with your setup. The cable may not be connected properly or your router is set up with a limited DHCP range or you've got a manual Ethernet setting that's screwing with it.

Test your hub this way: Connect a flash drive through your hub. If they're blocking USB, you won't see it mount or appear in the Disk Utility.

Thanks. The cable works fine connecting to my personal Mac. This is not an issue with my router, I'm sure. I'll check the USB block, good idea.

Quote
C(-)ris
Typically the network adapter wouldn't show up if it was being blocked. Seems more like a network or configuration issue at first glance.

You can go to System Preferences and then search for profiles and click on that. You will see a list of all the institutionally installed configuration profiles which could be adding or blocking functionality. You can double click on them and it will tell you want settings are being changed.

Thanks. Will check profiles.

I saw the subject line and thought 'Is a motorcycle helmet company making batting helmets?'

Apparently not.

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I am that Masked Man.

All you can do, is all you can do.

There’s trouble — it's time to play the sound of my people.

Your boos mean nothing to me, I've seen what you cheer for.

Insisting on your rights without acknowledging your responsibilities isn’t freedom, it’s adolescence.

I've been to the edge of the map, and there be monsters.

We are a government of laws, not men.

Everybody counts or nobody counts.

When a good man is hurt,
all who would be called good
must suffer with him.

At the going down of the sun and in the morning
We will remember them.

You and I have memories longer than the road that stretches out ahead.

There is no safety for honest men except
by believing all possible evil of evil men.

We don’t do focus groups. They just ensure that you don’t offend anyone, and produce bland inoffensive products. —Sir Jonathan Ive

An armed society is a polite society.
And hope is a lousy defense.

You make me pull, I'll put you down.

I *love* SIGs. It's Glocks I hate.

Quote
RAMd®d
I saw the subject line and thought 'Is a motorcycle helmet company making batting helmets?'

Apparently not.

I think you meant to post this to the previous thread.

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It is what it is.

I just tested a second USBC to ethernet adapter (from Anker), and it also gives me a 'Self-assigned IP'.

There are over 30 different profile settings, with at least one that says they can control network configuration.

I bet they do not even know how all of these profiles interact.



Edited 1 time(s). Last edit at 12/10/2023 10:59AM by sekker.

Quote
sekker
There are over 30 different profile settings, with at least one that says they can control network configuration...

Usually, that's just for signing onto corporate WiFi.

It would be really weird for them to disable Ethernet access on a device you're supposed to take home with you.

Something else is going on.

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Quote
Tiangou

Quote
sekker
There are over 30 different profile settings, with at least one that says they can control network configuration...

Usually, that's just for signing onto corporate WiFi.

It would be really weird for them to disable Ethernet access on a device you're supposed to take home with you.

Something else is going on.

Yep, I'll let them sort it out!

I think you meant to post this to the previous thread.


Yeah, I probably should have called it a night.

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I am that Masked Man.

All you can do, is all you can do.

There’s trouble — it's time to play the sound of my people.

Your boos mean nothing to me, I've seen what you cheer for.

Insisting on your rights without acknowledging your responsibilities isn’t freedom, it’s adolescence.

I've been to the edge of the map, and there be monsters.

We are a government of laws, not men.

Everybody counts or nobody counts.

When a good man is hurt,
all who would be called good
must suffer with him.

At the going down of the sun and in the morning
We will remember them.

You and I have memories longer than the road that stretches out ahead.

There is no safety for honest men except
by believing all possible evil of evil men.

We don’t do focus groups. They just ensure that you don’t offend anyone, and produce bland inoffensive products. —Sir Jonathan Ive

An armed society is a polite society.
And hope is a lousy defense.

You make me pull, I'll put you down.

I *love* SIGs. It's Glocks I hate.

Quote
RAMd®d
I think you meant to post this to the previous thread.


Yeah, I probably should have called it a night.

You are free to post any and all random notes in a thread about Mac management... Livens it up!

One client I work with blocks USB storage devices on their managed Macs, but allows other USB devices.

Does the USB-C ethernet device include any card readers or internal storage?

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decay
One client I work with blocks USB storage devices on their managed Macs, but allows other USB devices.

Does the USB-C ethernet device include any card readers or internal storage?

I've tried 4 different USB-C ethernet devices, the latest is the official Belkin model that Apple supports. Still same issue.

IT is going to remote into my machine to see if they can spot the problem. It's clearly a setting, as this machine CAN readily connect to the work ethernet via the built-in TB to ethernet hub in the Dell 32" 6k (very much non-standard adapter).

Quote
sekker
everything is rebooted etc...

Did you reboot your home-router?

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