Chateau 12 - WiFi no longer connects for a random device

RouterOS RouterOS beta
1

Description

I have Chateau 12 Mikrotik router with latest ROS 7.1 beta2, which I am using as access point. I setup 2 WiFis - one for 2.4Ghz and the other one for 5Ghz. Since I have no point to use 2.4Ghz for now, I only use 5Ghz WiFi only. I don’t know if this issue happens with 2.4Ghz. Main router is Mikrotik RB4011iGS+RM running latest stable version of routerOS 6...

Devices like laptops or smartphones are constantly being moved, therefore they disconnect and reconnect as they get away from Wi-Fi and get close again, but at some point some random device is no longer connecting to the Wi-Fi anymore. Android devices show “Obtaining IP address” and then “Configuration failed”. Not sure about laptops, but most importantly - it happens to randomly “selected” device which no longer able to connect to Wi-Fi. All other devices work as expected without any issues. It’s just happens to a random device.

Workaround/Temporary Fix

In order to fix it, one can:

  • Reboot router (it does not fix itself at all). Didn’t try experimenting with wireless interface resets or similar kind of thing.
  • Temporarily switch to 2.4Ghz until router is rebooted.

What I suspect

Something is wrong with Mikrotik WiFi drivers on “Chateau 12” or the way devices get configuration via WiFi. Something directly related to WiFi…

At home I have “Mikrotik RB4011iGS+RM” router and Netgear R7800 with OpenWRT acting as access point only. This setup is rock stable.
Now I have “Mikrotik RB4011iGS+RM” working as router and “Mikrotik Chateau 12” as access point only. And this setup is causing this issue…

Logs

Logs look like this:




[admin@Mikrotik Chateau 12] > /interface wireless export hide-sensitive 
# nov/28/2020 17:47:48 by RouterOS 7.1beta2
# software id = FHFK-T2KF
#
# model = RBD53G-5HacD2HnD
# serial number = C8CA0C1B7905
/interface wireless security-profiles
add authentication-types=wpa-psk,wpa2-psk eap-methods="" group-ciphers=tkip,aes-ccm mode=dynamic-keys name="my home" supplicant-identity="" unicast-ciphers=tkip,aes-ccm
/interface wireless
set [ find default-name=wlan2 ] band=5ghz-a/n/ac channel-width=20/40/80mhz-XXXX country="united states" disabled=no frequency=auto mode=ap-bridge name=wlan-corona security-profile="my home" ssid=Corona wireless-protocol=802.11 wmm-support=enabled wps-mode=disabled
set [ find default-name=wlan1 ] band=2ghz-b/g/n channel-width=20/40mhz-XX country="united states" disabled=no frequency=auto mode=ap-bridge name=wlan-ebola security-profile="my home" ssid=Ebola wireless-protocol=802.11 wmm-support=enabled wps-mode=disabled

I am reporting this issue here since chateau 12 has only RouterOS7, and I suspect it’s something to do with a firmware.

2

Disabling and re-enabling Wireless interface temporarily fixes the issue…

3

Hi!
Exaclty the same issue here.

4

I have same problem with Chateau 12, and as written above, the solution is to disable and enable wifi again. I already wrote to support, so hope, they will provide new release soon.

5

I have had the similar issue with Chateau, please try the latest beta3 which worked for me.

Link: https://box.mikrotik.com/f/7eb38dc0726f4b3ba15c/?dl=1 - 7.1beta3-arm.npk

6

You wouldn’t happen to have the release notes as well?

7

Thanks for sharing!

Happened to me, that I had no known DHCP-issues the last few days. Just one complete hang-up, where the Chateau wasn’t responding (neither wifi, nor LAN and even with static IP I could not connect to it). So I wasn’t able to create a support.rif the support asked me for.

8

erkexzcx:

RB4011 has 4x4 5Ghz Wifi, whereas Chateau has 2x2 only. In your case I would use RB4011 as router and AP, and then Chatau as LTE modem only…

redhatperl:

Please can you advice beta 3 build time ? (look for build time under “system/packages”) and share this.

9

Thanks to @redhatperl for sharing the firmware. It solves my different problems. Build time: Nov/13/2020 11:05:49.

10

I have RB4011 without WiFi. At home I have Mikrotik RB4011 as main router, and Netgear R7800 (OpenWRT) as Access point. My laptop achieves 750mbps speed on 5Ghz internet (I have gigabit internet). Rock stable connection.

Now I moved temporarily to different location, but here I brought Chateau 12 router with me. I am currently using it as access point only. In order to “feel like home” I connected Chateau 12 router with RB4011 router at my home via IPSEC/IKE2 tunnel and mounted EoIP tunnel on top of that. I bridged EoIP on both ends and now I have home internet at different location. When I connect to Chateau 12 access point (wifi), I get IP address from my home, not from Chateau router. I even wrote tutorial how to set it up.

I wanted to avoid explaining this, because you would suspect this configuration rather than Chateau 12 router, but with some additional testing it just boils down to Wireless drivers/software of Mikrotik. I installed beta3 (see upper comments) and so far everything is stable, but it’s been only few hours, so I will be looking how it will perform tomorrow.

11

I confirm that beta3 fixes this issue.