Does anyone know what is the exact meaning (and related scenario) of this error message:
xx:xx:xx:xx:xx:xx@ssid: disconnected, received deauth: no activity (4)
I get this error message irregularly on my RB2011, referring to the MAC address of a HP Chromebook and the SSID where it is connected.
The “no activity” part suggests that somehow the station is idle, but in reality this happens when the chromebook is e.g. streaming Youtube videos.
It loses the connection and re-connects 15-30 seconds later, and everything is OK again.
Other devices that are connected to the same router at the same time have no issue at all (they do not lose connection).
It would be useful to know what the message means, and if the “no activity” is a diagnosis from the MikroTik side or maybe the client issued a disconnect with “no activity” (code 4?) as reason for the disconnect.
If others have seen such issues, it would be useful to know if there is any parameter of the wifi that could be related to this, or if it is just a bug in the Chromebook WiFi driver.
I think I’ve been seeing the same thing over the last year or two, across multiple Android devices. I only started looking at the logs tonight, but I see wifi bounce repeatedly on the device at some point, and then it can be rock solid for hours. It only seems to affect the hap ac lite (2.4Ghz and 5Ghz), with capsman to a hex (other hap lites seem to be unaffected).
My problem still continues. For a long time the connection is steady, and then it starts bouncing like this and the issue keeps coming back every couple of minutes. But after some time it becomes stable again.
I have multiple SSIDs (virtual wireless interfaces) on the MikroTik router and I added a second one in the known networks list on the Chromebook. When it loses the connection it usually hops over to the other SSID and reconnects quicker than with only a single network.
When the connection is lost and I quickly open the WiFi networks list I see other SSIDs from my router still listed but the connected one has disappeared.
Then, a few seconds later it appears again.
However, other devices connected to the same router remain connected without problem! So it probably is not the router side going down, just the view that this Chromebook has.
@pe1chl this is the message that Mikrotik received from your Client device and not the other way around…
So, your client device disconnected from your AP and sent a message to the AP informing that the reason of disconnecting is that there was no activity… Make sure your computer has disabled the ability to turn off the Wireless adapter for battery economy…
Yes you stream a video when it disconnects but that video is certainly buffered, when the computer needs to use the wifi again it activates it and continues…
Your message is similar to this: “got deauth, <802.11 reason>” - received deauthentication frame from remote device, 802.11 reason code is reported in <802.11 reason>
Source: _https://wiki.mikrotik.com/wiki/Manual:Wireless_Debug_Logs_
Thanks for that pointer.
Indeed I think that it is most likely that the disconnect was initiated by the Chromebook.
However, there is no reason (other than a bug) why it would do so, as it really is active at that time.
It even happens while I am scrolling through comments and it suddenly hangs loading more data.
Of course, to report it at the ChromeOS development team I require some detail about what is really going
on, and interpreting the message is part of that.
If i were you i would use a usb wireless adapter for a 1-2 days and see if the problem persists… If not then the problem is caused by the Laptop’s wireless card…
Also, since it happens often, i would set my laptop to safe mode with networking and see how it goes… The problem might as well be software related…
Remember, it is a Chromebook. Not a Windows laptop.
A Chromebook is a Linux laptop with TPM and Google Chrome on it.
You cannot mess with it unless you “root” it.
But, you can submit problem reports that are actually read by people and often acted upon.
To do that, of course I need to present them with some detail information and it helps when I know what the error message means.
(because the people reading the error report likely do not know about MikroTik)
There is a debugging console where you can run dmesg and when I insert some WiFi stick it sees that the device is plugged in but it does not create a new network device from that.
(there is no way in the wifi network selector where I can select another network device)
I also tried with a USB ethernet interface but the result is basically the same.
These Chromebooks are ideal when you just want a browser device (similar to when you would buy a tablet) but it is not for tinkering.
At least, in their original state. You can “root” them and have a generic Linux device where you can install Debian packages etc.
But this thing is from my work and I am not going to do that (even though I am the admin there and I know that nothing would happen)
