received disassoc sending station leaving (8)

RouterOS Wireless Networking
1

Hello,
can you please help me. I have a issue with WLAN router : RB951G, OS 6.12.
Message debug : mac@wlan1: disconnected, received diassoc: sending station leaving (8). Configured channel : 11 20/40. I tried each solutions which I could find, but no luck.
It happens only with microtik router. Do you know how to solve it once and for all? :slight_smile:

Thanks

2

There are several reasons why it might be doing that, but to give any suggestions, we will need to know a little about your setup. Can you post your wireless settings from both the AP and the client?

3

My problem is the same, the log is full of with these and similar messages.I changed frequency, but did not help.I am trying to figure out, what the problem is.

4

what are the wireless clients?
that log message means that the client just disconnects. If it is some mobile client - it just goes to sleep mode (turns off the wifi to save battery life).

5

Mobile phones, and laptops, the log contain some error messages:

-disconnected, group key exchange timeout
-disconnected, unicast key exhange timeout
-disconnected, received disassoc: sending station leaving (8) (3)
-wlanX: data from unknow device XX:XX:XX:XX:XX:XX, sent deauth

Save battery mode is off
The signal strength is not bad from the clients, -60-80 dBm, Tx-power set to default in the RB 751U-2HnD

6

Make sure that you use AES encryption and not TKIP.

How often does it happen?
When it happens all the clients are disconnected or one of the clients and the rest of the clients continue to work without problems?

7

I am using AES, some clients working well, but some disconnected every 10 minutes
This is a very annoying problem, i am trying to guess what could be the problem, but i have no idea.

8

this is now happening with almost 10 AP’s i have deployed for indoor purpose.

very annoying… clients have started doubting router’s capabilities.

requesting mikrotik to find a solution please… Normis!!! help!!!

9

I have the same problem…
Version 6.22
Firmvare 3,17 (I upgrade it to 3.19, but it showing current 3.17 after reboot - it is strange)
rate-selection is advanced
only AES
Band B/G
I explore different setting to solve:

wlan sending station leaving
data unknown device sent deauth
UNICAST KEY EXCHANGE TIMEOUT

but very offen ping upping to 2000ms and devices connection breaked. All wifi mobile devices is off (andriod and IOS), only laptops and printers.

Is anybody solved this?

10

set the DATA RATES to Legacy and keep just single Chain (CHAIN 0) selected.

reboot the router… and check the stability

please update the result here.

11

Same problem.
I have one active user, he got disconnections. i see in logs what he connected, after 2-5 mins he got disconnections again. Also i see him as active user in hotspot window. Tested on two devices iphone 4s and iphone 5s. POS 6.23 RB95. Plz Help!!!

12

After I lowered the output power of the wireless card to 15 (default 17) - this problem wasn’t appeared.

13

After I lowered the output power of the wireless card to 15 (default 17) - this problem wasn’t appeared.

Can you clarify what exactly you make setup power on wireless card?

14

It coud be fine define on Mikrotik wiki “Standard” for setting working and stable wifi on Apple, Samsung, HTC and so on. Many vendors aren’t compatible with default setting wifi on mikrotik include wpa2 security. Please give us simple parametters or simple import for this. We can’t use any “unify” or another but functional solutions for clients if we have Mikrotik. :frowning:

15

Sorry for bump an old post.
But I have similar problems with and iphone 6 and a mikrotik AP (RB912UAG-2HPnD)
The others devices in the wifi (androids and laptops) are constantly connected but the iphone is arround 5 minutes and then print: received disassoc sending station leaving (8) in de log.
Again and again.

I think is some related with apple wireless chip power management and mikrotik AP wireless config.

If you need more info please ask for it but I think is a common problem with apple devices.
Any solution?
Thanks.

16

Hi,

I also had a problem with disconnects iphone from network, but my network setup looks as follows:
Internet → Routerboard 850gx2 → Wifi AP Cisco Aironet 2702.
My iphone was disconnecting from wifi every 10 minutes. The problem was with default settings of dhcp server in Mikrotik. Lease time was set to 10 minutes. When I changed it to 24h my iphone stays connected to the network :slight_smile:

btw. when I was using Mikrotik as AP, I also observed waking up mobile devices every 20s, it was killing battery. For this reason I’m not using Mikrotik for wireless with mobile devices :frowning:

Regards.

17

Did mikrotik failed to fix this issue?? I have upgraded to the last firmware but still have the same problem “disconnected, received diassoc: sending station leaving (8)”

18

I’m also having this issue with a new install. I’ve turned off power saving on my phone, but even when I’m using the phone the WiFi disconnects. I don’t have the issue with my laptop.

19

Hello, I have the same problem
If I connected me with the WLAN
Android says: connection
Android says: IP is related
And then disconnect

In the logfile
Xx: xx: xx: xx: xx: xx @ xxxCRS connected
And 3 seconds later
Xx: xx: xx: xx: xx: xx: xx @ xxxCRS disconnected, received disassoc: sending station leaving (8)

I find myself in another room, with reception to another CAPs,
So I get there a stable connection.

HAP lite A and hAP lite B works fine, only the CRS109 makes problems.

It is set up all over the same channel and rolled over capsman.

Thanks for your help

Use version 6.83.3 everywhere

20

problem solved.
The android mobilphone used McAfee
And the APP blocked the mac-adress of the WLAN, because i placed it for unsafe. :wink: