Devices does not see the wifi

mixalsf823 · Wed Nov 21, 2018 6:56 am

Hey!
I have a 3G / LTE modem Huawei E3372h-153 modem connected to the Mikrotik RB912UAG-5HPnD-OUT.

I set it up for a long time according to the instructions that are on the Internet. However, the Wi-Fi mode couldn’t be done. Wi-Fi connection. It simply doesn’t exist. What is the problem?

Thanks in advance.

mixalsf823 · Wed Nov 21, 2018 3:28 pm

More precisely, I wanted to say that gadgets do not detect it. However, my laptop sees wi-fi

cdiedrich · Wed Nov 21, 2018 3:54 pm

When you say gadgets, are you talking about some (cheaper) smart home devices?
Fewest of them support 5GHz WiFi and have 2.4GHz interfaces only.

-Chris

Pea · Wed Nov 21, 2018 9:33 pm

Check the channel, some devices do not see 2.4g wifi channel 13 (e.g. Kindle Paperwhite)

sebastia · Wed Nov 21, 2018 9:35 pm

depends on country setting: ex us is limited to 11 I believe. eu has 13

mkx · Wed Nov 21, 2018 9:57 pm

depends on country setting: ex us is limited to 11 I believe. eu has 13

Indeed.
When I unboxed a new LG G6, it didn't see WiFi AP on channel 13. After I put in SIM card and it registered to mobile network, it obviously discovered it was in Europe .. and it started to see the "invisible" AP.

mixalsf823 · Thu Nov 22, 2018 9:33 am

Thanks for the answer. However, it does not work. Maybe I made a mistake somewhere in the settings. Tell me, how can I show you a log or some kind of report so that you watch it?

cdiedrich · Thu Nov 22, 2018 10:31 am

As all other responders didn't realize you have a 5GHz model, I still stick with my theory that your gadgets support 2.4GHz only.

post the output of

/interface wireless monitor wlan1 once

and the datasheet of one of the affected gadgets.
-Chris

mixalsf823 · Thu Nov 22, 2018 10:48 am

Now i see it

[admin@MikroTik] > /interface wireless monitor wlan1 once
status: running-ap
channel: 5180/20-Ce/an/P
wireless-protocol: 802.11
noise-floor: -107dBm
registered-clients: 0
authenticated-clients: 0
wmm-enabled: yes
current-tx-powers: 6Mbps:27(27/27),9Mbps:27(27/27),12Mbps:27(27/27),18Mbps:27(27/27),
24Mbps:27(27/27),36Mbps:27(27/27),48Mbps:25(25/25),54Mbps:24(24/24),
HT20-0:27(27/27),HT20-1:27(27/27),HT20-2:27(27/27),HT20-3:27(27/27),
HT20-4:27(27/27),HT20-5:27(27/27),HT20-6:25(25/25),HT20-7:23(23/23),
HT40-0:27(27/27),HT40-1:27(27/27),HT40-2:27(27/27),HT40-3:27(27/27),
HT40-4:27(27/27),HT40-5:27(27/27),HT40-6:25(25/25),HT40-7:23(23/23)
notify-external-fdb: no

I have a phone xiaomi redmi 4x

cdiedrich · Thu Nov 22, 2018 10:54 am

And here's your problem.
Your phone doesn't support 5GHz WiFi: http://en.miui.com/thread-623020-1-1.html
-Chris

mixalsf823 · Thu Nov 22, 2018 11:17 am

Yes, I see that this is so unfortunately. TV earned at 5GHz
Tell me, is it possible in manual mode how to set the setting to 2.4GHz?

cdiedrich · Thu Nov 22, 2018 11:20 am

This radio interface supports 5GHz only.
You could add a 2.4GHz card to it , this one will surely do well: https://mikrotik.com/product/R11e-2HPnD
Add two MMCX pigtails and antennas and you have a decent dual-band AP

-Chris

mixalsf823 · Thu Nov 22, 2018 11:23 am

I understood. Thanks you.

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