hAP ax2 randomly drops WiFi SSIDs (both 2,4 and 5Ghz)

Hi!

I have recently bought a Mikrotik hAP ax2 router, running routerOS v7.6 but I am facing a few issues already…
One (which is being the most serious) that sometimes all of a sudden the wifi networks stop working, the SSIDs are not visible when searching for WiFi networks from devices. Of course connected devices also lose the connection. This happens for the second time in 3days. The networks do not come back (not even half an hour or an hour later). The only thing that restart the transmission is when I open the wifi network from winbox (double click on the network in Wireless menu) then push the Scan button (at this stage is still nothing happens) and then Close that window with the particular wifi interface. After closing the window the transmission restarts immediately and I see the following in the log:

22:14:17 wireless,info BC:DD:C2:0E:11:97@wifi2 connected, signal strength -57
22:14:18 wireless,info 78:0F:77:FD:7D:28@wifi2 connected, signal strength -54
22:14:18 wireless,info BC:DD:C2:0F:10:84@wifi2 connected, signal strength -73
22:14:18 dns,packet — got query from 192.168.1.25:41708:
22:14:18 dns,packet id:85de rd:1 tc:0 aa:0 qr:0 ra:0 QUERY ‘no error’




nothing else remarkable can be seen in the logs. I am attaching the whole debug log from around that time when transmission from wifi2 restarted (at that time I have already restarted wifi1 transmission with the same method).

Can you help me solve this serious issue?

Thank you!

Best regards,
Krisztián Barassevich

I also have random Wi-Fi drops on the hAP ax2 but in station mode. I’ve only seen it on 5 Ghz which made me think it was the AP to blame.

Could be that the drivers in ROS 7 are immature and not very stable at present.

Just to make sure: can you share your config (to see if anything could cause this)?
/export hide-sensitive file=anynameyoulike (and make sure to remove any personal information)

Hi.
I am also facing this situation. All clients are disconnected, the 2.4 and 5 GHz networks become unavailable.
In the wireless interfaces list I disable and re-enable interfaces and its turns on.
RouterOS 7.6.

I see it in the log, nothing else:

dec/03 20:38:22 wireless,info *mac*@wifi-5g disconnected, connection lost, signal strength -69 
dec/03 20:38:22 wireless,info *mac*@wifi-5g disconnected, connection lost, signal strength -68 
dec/03 20:38:22 wireless,info *mac*@wifi-5g disconnected, connection lost, signal strength -47 
dec/03 20:38:22 wireless,info *mac*@wifi-5g disconnected, connection lost, signal strength -74 
dec/03 20:38:22 wireless,info *mac*@wifi-24g disconnected, connection lost, signal strength -59 
dec/03 20:38:22 wireless,info *mac*@wifi-24g disconnected, connection lost, signal strength -50 
dec/03 20:38:22 wireless,info *mac*@wifi-24g disconnected, connection lost, signal strength -46 
dec/03 20:38:22 wireless,info *mac*@wifi-24g disconnected, connection lost, signal strength -49 
dec/03 20:38:22 wireless,info *mac*@wifi-24g disconnected, connection lost, signal strength -48 
dec/03 20:38:22 wireless,info *mac*@wifi-5g disconnected, connection lost, signal strength -70 
dec/03 20:38:22 wireless,info *mac*@wifi-5g disconnected, connection lost, signal strength -53

Hi, exactly the same issue here, suddenly connection lost and only re-enable wireless interfaces help :confused:

@Valherru: Do you use the same version (7.6)?

Oh, and I forgot to ask: is the device the same (hAP-ax2)?

Hello, i´ve got brand new hAP ax2. I removed default conf from the router and then, wireless interfaces are missing (not sure if even existed before removal). Downloaded, installed wifiwave2. Configuration is okay, but e.g. cell phone is not switching between 2.4GHZ and 5GHZ. SSID and psw are same. Next: Unable to configure virtual interface. Could you please assist with this issue ? or any reason why is this happening. Is it bug or what…
Thanks for every reply.

sid123 can you make a separate topic for your issue? this topic is about a specific issue.

everyone else - we are seeing something like this too. we are working on a fix in the internal betas right now, so next major v7 release should hopefully resolve the problem.

Same problem here. I do a reboot every day at 0600, as it usually drops sometime at night.
Enclosed my cfg.

Rgds Herman
Hap ax2 with 7.6

p.s. in the log I see a lot of connected/disconnected pairs of devices. Added a few lines as example.
Screenshot 2022-12-06 at 11.41.08.png
hapax2_hello.rsc (1.77 KB)

Great to hear that you were able to reproduce the issue. Thanks Normis!

Can’t wait to use my ax2 boxes in prod after this is fixed :slight_smile:

@Coolbox:

security.authentication-types=wpa-psk,wpa2-psk

I would expect at least wpa2-psk (and perhaps wpa3). Why use wpa-psk?

Same here. WiFi drops every night, only reboot helps.

/interface/wifiwave2/export

# dec/10/2022 23:40:36 by RouterOS 7.6
# software id = JAMW-UMX1
#
# model = C52iG-5HaxD2HaxD
/interface wifiwave2
set [ find default-name=wifi2 ] configuration.mode=ap .ssid=MyWiFi2G
/interface wifiwave2 channel
add frequency=2412,2432,2472 name=ch-2ghz width=20mhz
add frequency=5180,5260,5500 name=ch-5ghz width=20/40/80mhz
/interface wifiwave2 security
add authentication-types=wpa2-psk,wpa3-psk name=MyWiFi
add authentication-types=wpa2-psk,wpa3-psk name=MyWiFiGuest
/interface wifiwave2 configuration
add channel=ch-5ghz country=Guatemala name=MyWiFi security=MyWiFi ssid=MyWiFi
add channel=ch-5ghz country=Guatemala name=MyWiFiGuest security=MyWiFiGuest ssid=MyWiFiGuest
/interface wifiwave2
set [ find default-name=wifi1 ] channel.frequency=5180,5260,5500 configuration=MyWiFi configuration.mode=ap disabled=no
# failed to create interface
add channel.frequency=5180,5260,5500 configuration=MyWiFiGuest configuration.mode=ap disabled=no mac-address=AA:BB:CC:AA:BB:CC master-interface=wifi1 name=wifi3-guest

The scan trick doesn’t work for me. I found no way to broadcast SSID again yet except rebooting the device.

Is this limited to AX2? Because i have Capsman controlled network (Capsman on my main router, version 7.6, AC3) and i noticed few times, in the middle of the night, that i completly lost acess to all Wireless networks. They ware simply gone. I powered computer up at 2 AM and tried to connect to AC3 with LAN cable via Winbox without sucess.

But apparently internet was still working since all the cameras i have in my home network ware acessible from mobile network.

Reboot solved the issue but i don’t have any logs on that since i could not connect to AC3.

I don’t think it’s related. The hAP ax2 is accessible via LAN. It just stops broadcasting BSSID beacons and you can’t connect anymore…

@jacobp posted here:
http://forum.mikrotik.com/t/v7-7rc-is-released/162872/1

The 7.7rc2 release has fixed my issue with the hAP ax2 radios.

With the countries field now populated, the wifi radios start up and devices associate just fine. Thanks to the Mikrotik team for getting that taken care of!

Not sure whats exactly was his issue. I will give 7.7rc2 a shot.

I’m running latest 7.8 and got same issues. Atm I’m unable to connect without factory reset… Aside from randomly dropping WiFi network I also saw networks randomly starting up even though they were disabled.

Those of you posting to this thread - might I recommend my other thread: http://forum.mikrotik.com/t/apple-12-macbook-2017-to-hap-ax2-via-2ghz-and-5ghz-drops-during-large-data-transfer/164948/1

TL;DR: For your 2GHz network, force the master interface’s band to 802.11n (i.e. 2GHz N). For your 5GHz network, force the master interface’s band to 802.11ac (i.e. 5GHz AC).

If this works for you, you’ll have to give up the 802.11ax capability, but it might gain you stability until there’s a way/improvement for AX to live nicely with some devices.

Let me now if this helps, and definitely let me know if this doesn’t help so I can be sure I’m not providing garbage advice in the future.

Interesting, thanks!

I have a setup where I have 3 WLANs 5GHz and 3 WLANs 2.4GHz paired (2.4 + 5) into 3 wifi endpoints. I was trying to prepare nice config file, which I could gradually improve with better firewall setup or VLAN configuration… AND it was pissing me off(!) because my WLANs were unstable, some were visible, others not. Sometimes it was 5GHz that was working, sometimes 2.4GHz - it was changing after reboot or something? But it looks like I’ve finally solved the puzzle!

#
# Unstable configuration
#

# Configuration
/interface wifiwave2 configuration add name=wifi2 mode=ap country=Poland channel.band=2ghz-ax channel.width=20/40mhz
/interface wifiwave2 configuration add name=wifi6 mode=ap country=Poland channel.band=5ghz-ax channel.width=20/40/80mhz

# Home SSID
/interface wifiwave2 security add name=main authentication-types=wpa2-psk,wpa3-psk passphrase="passphrase"
/interface wifiwave2 set [ find default-name=wifi1 ] configuration=wifi6 configuration.ssid=BLUE channel.skip-dfs-channels=disabled security=main disabled=no
/interface wifiwave2 set [ find default-name=wifi2 ] configuration=wifi2 configuration.ssid=BLUE security=main disabled=no

# Guest SSID
/interface wifiwave2 security add name=guest authentication-types=wpa2-psk,wpa3-psk passphrase="passphrase"
/interface wifiwave2 add name="guest1" master-interface=wifi1 configuration=wifi6 configuration.ssid=GREEN security=guest disabled=no
/interface wifiwave2 add name="guest2" master-interface=wifi2 configuration=wifi2 configuration.ssid=GREEN security=guest disabled=no

# IoT SSID
/interface wifiwave2 security add name=iot authentication-types=wpa2-psk,wpa3-psk passphrase="passphrase"
/interface wifiwave2 add name="iot1" master-interface=wifi1 configuration=wifi6 configuration.ssid=RED security=iot disabled=no
/interface wifiwave2 add name="iot2" master-interface=wifi2 configuration=wifi2 configuration.ssid=RED security=iot disabled=no


#
# Stable (so far) configuration:
#

# Configuration
/interface wifiwave2 configuration add name=wifi2 mode=ap country="Poland" channel.band=2ghz-ax channel.width=20/40mhz
/interface wifiwave2 configuration add name=wifi6 mode=ap country="Poland" channel.band=5ghz-ax channel.width=20/40/80mhz

# Home SSID
/interface wifiwave2 security add name=main authentication-types=wpa2-psk,wpa3-psk passphrase="passphrase"
/interface wifiwave2 set [ find default-name=wifi1 ] configuration=wifi6 configuration.ssid=BLUE channel.skip-dfs-channels=disabled security=main disabled=no
/interface wifiwave2 set [ find default-name=wifi2 ] configuration=wifi2 configuration.ssid=BLUE security=main disabled=no

# Guest SSID
/interface wifiwave2 security add name=guest authentication-types=wpa2-psk,wpa3-psk passphrase="passphrase"
/interface wifiwave2 add name="guest1" master-interface=wifi1 configuration=wifi6 configuration.ssid=GREEN security=guest disabled=no
/interface wifiwave2 add name="guest2" master-interface=wifi2 configuration=wifi2 configuration.ssid=GREEN security=guest disabled=no

# IoT SSID
/interface wifiwave2 security add name=iot authentication-types=wpa2-psk,wpa3-psk passphrase="passphrase"
/interface wifiwave2 add name="iot1" master-interface=wifi1 configuration=wifi6 configuration.ssid=RED security=iot disabled=no
/interface wifiwave2 add name="iot2" master-interface=wifi2 configuration=wifi2 configuration.ssid=RED security=iot disabled=no

Can you spot the difference?

it’s the “” around the name of the country in wifiwave2 configuration. For some reason if the “” was missing the config loading was unstable and country was not setup in configuration properly. Because of that ie. only one group of networks was working, sometimes the other one and sometimes none… The country seems to be required to be set for the wifi to work stable. Not sure if that would help you with your issues, but looks like setting country with “” solved my issues. Wifi is stable over last 3 days.