Mikrotik Groove with very low RX signal

RouterOS Wireless Networking
1

I bought a Mikrotik Groove 52Hpn L3 and I did the upgrade to L4, now it could be an AP.
I had a TP Link 15 dB omni antenna..

Now I am doing test and I am getting very low performance, disconnections and many issues because the RX sensitivity for all device is very very low.

The antenna is working perfectly, if I plug in a PicoStation, I got an increased signal levels.

Here, some configurations:

/interface wireless
set [ find default-name=wlan1 ] antenna-gain=15 band=2ghz-b/g/n country=venezuela disabled=no distance=indoors frequency=2447 hw-retries=4
l2mtu=2290 mode=ap-bridge name=wlan1-recepcion ssid=Recepcion wireless-protocol=802.11
/interface wireless security-profiles
set [ find default=yes ] authentication-types=wpa2-psk eap-methods=“” mode=dynamic-keys supplicant-identity=MikroTik wpa-pre-shared-key=
2304Bubu wpa2-pre-shared-key=xxxxxxxx
add authentication-types=wpa2-psk eap-methods=“” group-ciphers=tkip,aes-ccm management-protection=allowed mode=dynamic-keys name=clientes
supplicant-identity=“” unicast-ciphers=tkip,aes-ccm wpa2-pre-shared-key=xxxxxx
add authentication-types=wpa2-psk eap-methods=“” management-protection=allowed mode=dynamic-keys name=satelital supplicant-identity=“”
wpa2-pre-shared-key=12345678
/interface wireless
add disabled=no l2mtu=2290 mac-address=4E:5E:0C:E1:3C:C5 master-interface=wlan1-recepcion name=wlan2-clientes security-profile=clientes
ssid=Trocadero_Arena wds-cost-range=0 wds-default-cost=0


now the equipment is in my house, in a half-isolated area (no too much wireless networks) and my other Wifis (1.- with picostation HP, 2.- with Mikrotik 751) works fine and get better RX signals.

Now, my wife´s phones is on the same room, about 3 feets away (Mac: 58:A2:…) away and I got the following:
and my Ipad is in another room (about 9 feets away)


[admin@wireless-sala-mikrotik] /interface wireless registration-table> print

INTERFACE RADIO-NAME MAC-ADDRESS AP SIGNAL-STRENGTH TX-RATE UPTIME

0 wlan2-clientes 8C:FA:BA:6E:38:91 no -85dBm@1Mbps 6.0Mbps 59m52s
1 wlan2-clientes 58:A2:B5:D6:FF:01 no -89dBm@HT20-1 58.5… 15m57s

The signal from the devices is very low for the BIG antenna, and the environment

Here, a spectrum scan:

[admin@wireless-sala-mikrotik] /interface wireless> frequency-monitor
number: wlan
wlan1-recepcion wlan2-clientes
number: wlan1-recepcion
FREQ USE NF
2412MHz 4.9% -118
2417MHz 3.8% -118
2422MHz 2.6% -118
2427MHz 3.9% -118
2432MHz 8% -118
2437MHz 0% -116
2442MHz 1.4% -117
2447MHz 1.9% -117
2452MHz 1.2% -118
2457MHz 0% -115
2462MHz 0% -117
2467MHz 0% -117
2472MHz 0% -117

Anyone could help me?
All kind of advise will be gratefully

2

something is definitely wrong, the signals are too weak for devices that are in the same room. did you run the Groove without a connected antenna for some time?

3

I didn´t. Maybe few seconds for checking the power, but never more that 20 secs…
Could it damage it? (is just a question)

4

Only if you run with continuous output power for longer time, not for such short moment.

5

Thank you my friend.
It didn´t run for long time, maybe for short time (seconds) for testing.
I received some equipment the same day, and I plugged some for testing that it power up, just it.

Another idea? Thank you

6

Hello again… today, looking in internet, I found this: http://wiki.mikrotik.com/wiki/Manual:Wireless_card_diagnostics#DC_shorted_antennas

and my antena, the TPLink 15 dBi omni is NOT shorted, is OPEN. Do I need a lightning arrestor ?

Is my first time I listen it