I'm Using two SXT5-Lite to connect my network with my neighbour. Distance: 30m; Direct Line of sight.
It worked for about 3 years, but in the last few month, we have a lot of disconnects and the connection drops for about 30-40 minutes. The same configuration works on another site since 2016 without any problems.
Today I added a watchdog on the neigbours side to minimize the downtime - but I'd be happy to find the root cause instead of constantly rebooting.
The errors are always the same:
(on the neighbours side SW16-SXT5-Dach):
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apr/09 07:53:05 wireless,info 64:D1:54:1B:5E:EF@wlan1: lost connection, synchronization timeout
apr/09 07:55:43 wireless,info 64:D1:54:1B:5E:EF@wlan1 established connection on 5560000, SSID __SPW15/16-WAN-Conn__
apr/09 20:14:44 wireless,info 64:D1:54:1B:5E:EF@wlan1: lost connection, synchronization timeout
apr/09 20:15:47 wireless,info 64:D1:54:1B:5E:EF@wlan1 established connection on 5500000, SSID __SPW15/16-WAN-Conn__
apr/09 21:55:08 wireless,info 64:D1:54:1B:5E:EF@wlan1: lost connection, synchronization timeout
apr/09 21:56:13 wireless,info 64:D1:54:1B:5E:EF@wlan1: failed to connect, on 5660000, synchronization timeout
apr/09 21:58:11 wireless,info 64:D1:54:1B:5E:EF@wlan1 established connection on 5560000, SSID __SPW15/16-WAN-Conn__
apr/09 22:04:48 wireless,info 64:D1:54:1B:5E:EF@wlan1: lost connection, synchronization timeout
apr/09 22:26:04 wireless,info 64:D1:54:1B:5E:EF@wlan1 established connection on 5500000, SSID __SPW15/16-WAN-Conn__
apr/09 22:50:13 wireless,info 64:D1:54:1B:5E:EF@wlan1: lost connection, synchronization timeout
apr/09 23:02:05 wireless,info 64:D1:54:1B:5E:EF@wlan1 established connection on 5620000, SSID __SPW15/16-WAN-Conn__
apr/09 23:07:30 wireless,info 64:D1:54:1B:5E:EF@wlan1: lost connection, synchronization timeout
Configurations:
Device "SW15"
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# apr/11/2021 21:19:20 by RouterOS 6.48.1
# model = SXT 5nD r2
# name=BgSW15-SXT5-SAT
/interface bridge
add fast-forward=no name=bridge1
/interface wireless
set [ find default-name=wlan1 ] band=5ghz-a/n channel-width=20/40mhz-Ce \
country=austria disabled=no mode=bridge name=wlan2 nv2-preshared-key=\
"*****" nv2-security=enabled ssid=__SPW15/16-WAN-Conn__ \
station-roaming=enabled wireless-protocol=nv2 wps-mode=disabled
/interface wireless security-profiles
set [ find default=yes ] authentication-types=wpa2-psk eap-methods="" mode=\
dynamic-keys supplicant-identity=MikroTik wpa-pre-shared-key=\
****** wpa2-pre-shared-key="******"
/interface wireless access-list
add interface=wlan2 mac-address=64:D1:54:BA:AC:4B signal-range=0 vlan-mode=\
no-tag
[admin@BgSW15-SXT5-SAT] > /interface wireless monitor wlan2
status: running-ap
channel: 5500/20-Ce/an/DP(11dBm)
wireless-protocol: nv2
noise-floor: -111dBm
registered-clients: 1
authenticated-clients: 1
current-tx-powers: 6Mbps:8(8/11),9Mbps:8(8/11),12Mbps:8(8/11),
18Mbps:8(8/11),24Mbps:8(8/11),36Mbps:8(8/11),
48Mbps:8(8/11),54Mbps:8(8/11),HT20-0:8(8/11),
status: running-ap
channel: 5500/20-Ce/an/DP(11dBm)
wireless-protocol: nv2
noise-floor: -111dBm
registered-clients: 1
authenticated-clients: 1
current-tx-powers: 6Mbps:8(8/11),9Mbps:8(8/11),12Mbps:8(8/11),
18Mbps:8(8/11),24Mbps:8(8/11),36Mbps:8(8/11),
48Mbps:8(8/11),54Mbps:8(8/11),HT20-0:8(8/11),
HT20-1:8(8/11),HT20-2:8(8/11),HT20-3:8(8/11),
HT20-4:8(8/11),HT20-5:8(8/11),HT20-6:8(8/11),
HT20-7:8(8/11),HT40-0:8(8/11),HT40-1:8(8/11),
HT40-2:8(8/11),HT40-3:8(8/11),HT40-4:8(8/11),
HT40-5:8(8/11),HT40-6:8(8/11),HT40-7:8(8/11)
notify-external-fdb: no
Code: Select all
# apr/11/2021 21:18:10 by RouterOS 6.48.1
# model = SXT 5nD r2
# name=CR-SW16-SXT-Dach
/interface wireless
set [ find default-name=wlan1 ] band=5ghz-a/n channel-width=20/40mhz-Ce \
country=austria disabled=no distance=1 mode=station-bridge \
nv2-preshared-key="*****" nv2-security=enabled ssid=\
__SPW15/16-WAN-Conn__ station-roaming=enabled wireless-protocol=\
nv2-nstreme-802.11
/interface wireless security-profiles
set [ find default=yes ] authentication-types=wpa-psk,wpa2-psk eap-methods="" \
group-ciphers=tkip,aes-ccm mode=dynamic-keys supplicant-identity=MikroTik \
unicast-ciphers=tkip,aes-ccm wpa-pre-shared-key="********" \
wpa2-pre-shared-key="********"
[admin@CR-SW16-SXT-Dach] > /interface wireless monitor wlan1
status: connected-to-ess
channel: 5500/20-Ce/an/DP(11dBm)
wireless-protocol: nv2
tx-rate: 300Mbps-40MHz/2S/SGI
rx-rate: 300Mbps-40MHz/2S/SGI
ssid: __SPW15/16-WAN-Conn__
bssid: 64:D1:54:1B:5E:EF
radio-name: 64D1541B5EEF
signal-strength: -35dBm
signal-strength-ch0: -38dBm
signal-strength-ch1: -39dBm
tx-signal-strength: -33dBm
tx-signal-strength-ch0: -38dBm
tx-signal-strength-ch1: -35dBm
noise-floor: -113dBm
signal-to-noise: 78dB
tx-ccq: 100%
rx-ccq: 100%
authenticated-clients: 1
current-distance: 1
wds-link: no
bridge: yes
routeros-version: 6.48.1
last-ip: 109.70.96.178
encryption: aes-ccm
group-encryption: aes-ccm
current-tx-powers: 6Mbps:8(8/11),9Mbps:8(8/11),12Mbps:8(8/11),18Mbps:8(8/11),24Mbps:8(8/11),36Mbps:8(8/11),48Mbps:8(8/11),54Mbps:8(8/11),HT20-0:8(8/11),HT20-1:8(8/11),
HT20-2:8(8/11),HT20-3:8(8/11),HT20-4:8(8/11),HT20-5:8(8/11),HT20-6:8(8/11),HT20-7:8(8/11),HT40-0:8(8/11),HT40-1:8(8/11),HT40-2:8(8/11),HT40-3:8(8/11),
HT40-4:8(8/11),HT40-5:8(8/11),HT40-6:8(8/11),HT40-7:8(8/11)
notify-external-fdb: no