Then, Installation - Home Assistant should be moved to the Raspbian website.
On that page, I don’t see anything from this exercise.
There is nothing on that page about changing mac-addresses, and it is an issue with network-manager.
Exactly! And that is the issue. That that page isn’t mentioning this issue, caused by installing a package that that page tells you to do.
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5 minutes google :
Network-Manager will reset your mac address during the wifi scanning.
To permanently change your mac address:
Edit your /etc/NetworkManager/NetworkManager.conf as follows:
[main]
plugins=ifupdown,keyfile
[ifupdown]
managed=false
[device]
wifi.scan-rand-mac-address=no
[keyfile]
Edit your /etc/network/interfaces by adding the following line:
pre-up ifconfig wlp68s0b1 hw ether xx:xx:xx:yy:yy:yy
The xx:xx:xx:yy:yy:yy is the new mac address obtained from the output of macchanger -A wlp68s0b1
Reboot and verify your settings.
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I’m not the only one confused about incomplete documentation:
- https://github.com/home-assistant/supervisor/issues/1488
- https://github.com/home-assistant/hassio-installer/issues/43
And guess what, they’re on Home Assistant’s GitHub repos, not on Raspbian forum.
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Do you want to create a PR for this?
I added it: https://github.com/home-assistant/home-assistant.io/pull/12342.
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As others have already found a solution, I just wanted to note, why I was asking the way I did.
It is not easy, to pinpoint an error, if you do not have that “first sight” moment. Most of the times, I just have an idea, what may cause the problem. In some cases, like yours, it is not even a guess. It is simply a feeling, where to look. And this is why I did ask for more information. I didn’t have any idea, but in looking at code examples, config files and such things, most of the time it is a stumbling over something, that just doesn’t feel right. That’s the point, where one can dig in and investigate further.
So the more detailed your description of everything you have down is, the better someone stumbles upon something.
So, yes, if the answer to the problem isn’t “directly” visible, I for one want as much information as possible, even the small things, because I’m sure, there will be something… 
No hard feelings, if it’s not obvious, one has to ask. Hope now all is working for you.
I understand. But seeing that I didn’t do anything crazy or extra, and just followed the instructions, I expected for someone to tell me that it’s a known issue, meaning that I used the wrong keywords when looking for an existing thread. Like
Hey, of course it changes, because we’re telling people to install
network-manager, and it does this by default.
And again, I can not understand how am I the only one in the world stumbling upon this issue.
I understand. But I, again, thought that it’s a known issue with a simple solution, that I could simply not find, not that others didn’t think of it. That’s why I asked the question before testing again as I did for this comment.
Same, and thank you all for your time.
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Maybe this help - https://blogs.gnome.org/thaller/2016/08/26/mac-address-spoofing-in-networkmanager-1-4-0/
Unfortunately I ran into the same problem. Luckily I found this thread and want to thank revolter and others for efforts to help others. I understand both parties in the discussion here.
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I’ve also run into the same problem. Thank you @Revolver for this thread, and the patience to post your steps in addition to your private investigation.
And again, I can not understand how am I the only one in the world stumbling upon this issue.
I can assure you that’s not the case, most people will just not bother to create an account here to reply/like. I almost failed to do so myself, and only changed my mind because of how painful reading through this thread was…
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Very few people use wi-fi so it had probably not been noticed.
I’ve also run into the same problem installing HA Supervised according these instructions:
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I would also like to thank @revolter for his patience in answering this thread, despite relatively hostile criticism and apparent lack of ability to read from other members of the forum.
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I do have the same issue. And I will upload my router’s DCHP record. I’m a Chinese ,and I cannot find any chinese issue by the source in china. So I used google to search for the issus. Luckly, I found your issue. Hope now all is working for you.
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Just created an account to thank @revolter for documenting the issue.
I encountered the same problem using Raspberry Pi 4 and following the official installation instructions of Home Assistant Operating System on Raspberry Pi - Home Assistant.
I observed a change in MAC address on eth0 after a power outage, which resulted in a reboot. I do not observe a change in MAC address after a controlled reboot pressing the button “reboot host” in Home Assistant Supervisor.
The version of Home Assistant OS that was installed was release 5 build 12.
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I’m just another regular folk that, after a power outage, found all systems went into the red because of this exact same issue. Found the cause of the problem thanks to this thread by @revolter
I’m still trying to find the best way to run Home Assistant. I’m mostly fine with HASS but it’s very, very inflexible with the smallest of changes. The machine is basically just for HA, but it has severe limitations that make it impractical in quite a lot of use-cases (such as plugging in a zigbee usb receiver, or running the neolink daemon). I shouldn’t need a second machine to run these.
Don’t get me wrong. I’m very happy with the work that the team has put on the HA project! But as-is is too much of a “tinkerer” setup, rather than a “plug-in and forget” kind of thing.
Created an account exactly for this:
Just created an account to thank @revolter for documenting the issue.
I would also like to thank @revolter for his patience in answering this thread, despite relatively hostile criticism and apparent lack of ability to read from other members of the forum.
I can assure you that’s not the case, most people will just not bother to create an account here to reply/like. I almost failed to do so myself, and only changed my mind because of how painful reading through this thread was…
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Thank you for your support, and sorry for not being able to make it better for people coming after me.
The thing is that I didn’t only report it, but I even tried to personally contribute a fix to the documentation, but it was declined, with no valid reason IMHO: Add missing MAC address randomization warning by revolter · Pull Request #12342 · home-assistant/home-assistant.io · GitHub.
I don’t know what else I could have done…
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