I have read all the posts related to similar problems but have not found anything concrete...
We have P2P link on cca 12km, jirous dish (MIMO 29 dBi) anthenna on bot sides. One side is RB433GL with R52HN card, other side RB711-5HnD.
Signal streinght is 60/60 ccq: 98/98...100/100
Spectrum is completely free and there is no interference on 5Ghz band and this channel.
Must use nstreme becouse I can not afford the high ping (nv2).
I thought it was a problem in nstreme and "5Ghz-n" wireless mode but now conf. is in "5Ghz-a" mode and it is the same...
Client side report ewery 30-60 min:lost connection, not polled for too long
Bridge: disconnected, too many poll timeouts
Station (RB433GL with R52HN) conf.:
# jul/03/2013 08:10:03 by RouterOS 5.24
# software id = *******
#
/interface wireless security-profiles
set [ find default=yes ] authentication-types="" eap-methods=passthrough group-ciphers=aes-ccm group-key-update=5m \
interim-update=0s management-protection=disabled management-protection-key="" mode=none name=default \
radius-eap-accounting=no radius-mac-accounting=no radius-mac-authentication=no radius-mac-caching=disabled \
radius-mac-format=XX:XX:XX:XX:XX:XX radius-mac-mode=as-username static-algo-0=none static-algo-1=none static-algo-2=\
none static-algo-3=none static-key-0="" static-key-1="" static-key-2="" static-key-3="" static-sta-private-algo=none \
static-sta-private-key="" static-transmit-key=key-0 supplicant-identity=MikroTik tls-certificate=none tls-mode=\
no-certificates unicast-ciphers=aes-ccm wpa-pre-shared-key="" wpa2-pre-shared-key=""
/interface wireless
set 0 adaptive-noise-immunity=none allow-sharedkey=no antenna-gain=0 area="" arp=proxy-arp band=5ghz-a basic-rates-a/g=\
6Mbps basic-rates-b=1Mbps bridge-mode=enabled channel-width=20mhz compression=no country=croatia \
default-ap-tx-limit=0 default-authentication=yes default-client-tx-limit=0 default-forwarding=yes dfs-mode=none \
disable-running-check=no disabled=no disconnect-timeout=3s distance=14 frame-lifetime=0 frequency=5580 \
frequency-mode=manual-txpower frequency-offset=0 hide-ssid=no ht-ampdu-priorities=0 ht-amsdu-limit=8192 \
ht-amsdu-threshold=8192 ht-basic-mcs=mcs-0,mcs-1,mcs-2,mcs-3,mcs-4,mcs-5,mcs-6,mcs-7 ht-guard-interval=any \
ht-rxchains=0,1 ht-supported-mcs="mcs-0,mcs-1,mcs-2,mcs-3,mcs-4,mcs-5,mcs-6,mcs-7,mcs-8,mcs-9,mcs-10,mcs-11,mcs-12,mc\
s-13,mcs-14,mcs-15,mcs-16,mcs-17,mcs-18,mcs-19,mcs-20,mcs-21,mcs-22,mcs-23" ht-txchains=0,1 \
hw-fragmentation-threshold=disabled hw-protection-mode=none hw-protection-threshold=0 hw-retries=7 l2mtu=2290 \
mac-address=xx:xx:xx:xx:xx:xx max-station-count=2007 mode=station-bridge mtu=1500 multicast-helper=default name=\
wlan1 noise-floor-threshold=default nv2-cell-radius=30 nv2-noise-floor-offset=default nv2-preshared-key="" nv2-qos=\
default nv2-queue-count=2 nv2-security=disabled on-fail-retry-time=100ms periodic-calibration=default \
periodic-calibration-interval=60 preamble-mode=both proprietary-extensions=post-2.9.25 radio-name=xxxxxxxxxxxx \
rate-selection=advanced rate-set=default scan-list=default security-profile=default ssid=SOME-LINK \
station-bridge-clone-mac=00:00:00:00:00:00 supported-rates-a/g=6Mbps,9Mbps,12Mbps,18Mbps,24Mbps,36Mbps,48Mbps,54Mbps \
supported-rates-b=1Mbps,2Mbps,5.5Mbps,11Mbps tdma-period-size=2 tx-power=18 tx-power-mode=card-rates \
update-stats-interval=disabled wds-cost-range=50-150 wds-default-bridge=none wds-default-cost=100 wds-ignore-ssid=no \
wds-mode=disabled wireless-protocol=nv2-nstreme-802.11 wmm-support=disabled
/interface wireless manual-tx-power-table
set wlan1 manual-tx-powers="1Mbps:17,2Mbps:17,5.5Mbps:17,11Mbps:17,6Mbps:17,9Mbps:17,12Mbps:17,18Mbps:17,24Mbps:17,36Mbps\
:17,48Mbps:17,54Mbps:17,HT20-0:17,HT20-1:17,HT20-2:17,HT20-3:17,HT20-4:17,HT20-5:17,HT20-6:17,HT20-7:17,HT40-0:17,HT4\
0-1:17,HT40-2:17,HT40-3:17,HT40-4:17,HT40-5:17,HT40-6:17,HT40-7:17"
/interface wireless nstreme
set wlan1 disable-csma=no enable-nstreme=yes enable-polling=yes framer-limit=3200 framer-policy=none
/interface wireless align
set active-mode=yes audio-max=-20 audio-min=-100 audio-monitor=00:00:00:00:00:00 filter-mac=00:00:00:00:00:00 \
frame-size=300 frames-per-second=25 receive-all=no ssid-all=no
/interface wireless sniffer
set channel-time=200ms file-limit=10 file-name="" memory-limit=10 multiple-channels=no only-headers=no receive-errors=no \
streaming-enabled=no streaming-max-rate=0 streaming-server=0.0.0.0
/interface wireless snooper
set channel-time=200ms multiple-channels=yes receive-errors=no
Bridge RB711-5HnD conf. :
# jan/11/1970 17:00:02 by RouterOS 5.24
# software id = *******
#
/interface wireless security-profiles
set [ find default=yes ] authentication-types="" eap-methods=passthrough group-ciphers="" group-key-update=5m \
interim-update=0s management-protection=disabled management-protection-key="" mode=none name=default \
radius-eap-accounting=no radius-mac-accounting=no radius-mac-authentication=no radius-mac-caching=disabled \
radius-mac-format=XX:XX:XX:XX:XX:XX radius-mac-mode=as-username static-algo-0=none static-algo-1=none static-algo-2=\
none static-algo-3=none static-key-0="" static-key-1="" static-key-2="" static-key-3="" static-sta-private-algo=none \
static-sta-private-key="" static-transmit-key=key-0 supplicant-identity=MikroTik tls-certificate=none tls-mode=\
no-certificates unicast-ciphers="" wpa-pre-shared-key="" wpa2-pre-shared-key=""
/interface wireless
set 0 adaptive-noise-immunity=none allow-sharedkey=no antenna-gain=0 area="" arp=proxy-arp band=5ghz-a/n \
basic-rates-a/g=6Mbps bridge-mode=enabled channel-width=20/40mhz-ht-above compression=no country=croatia \
default-ap-tx-limit=0 default-authentication=yes default-client-tx-limit=0 default-forwarding=yes dfs-mode=none \
disable-running-check=no disabled=no disconnect-timeout=3s distance=dynamic frame-lifetime=0 frequency=5580 \
frequency-mode=manual-txpower frequency-offset=0 hide-ssid=no ht-ampdu-priorities=0 ht-amsdu-limit=8192 \
ht-amsdu-threshold=8192 ht-basic-mcs=mcs-0,mcs-1,mcs-2,mcs-3,mcs-4,mcs-5,mcs-6,mcs-7 ht-guard-interval=any \
ht-rxchains=0,1 ht-supported-mcs="mcs-0,mcs-1,mcs-2,mcs-3,mcs-4,mcs-5,mcs-6,mcs-7,mcs-8,mcs-9,mcs-10,mcs-11,mcs-12,mc\
s-13,mcs-14,mcs-15,mcs-16,mcs-17,mcs-18,mcs-19,mcs-20,mcs-21,mcs-22,mcs-23" ht-txchains=0,1 \
hw-fragmentation-threshold=disabled hw-protection-mode=none hw-protection-threshold=0 hw-retries=7 l2mtu=2290 \
mac-address=XX:XX:XX:XX:XX:XX max-station-count=2007 mode=bridge mtu=1500 multicast-helper=default name=wlan1 \
noise-floor-threshold=default nv2-cell-radius=13 nv2-noise-floor-offset=default nv2-preshared-key="" nv2-qos=default \
nv2-queue-count=2 nv2-security=disabled on-fail-retry-time=100ms periodic-calibration=default \
periodic-calibration-interval=60 preamble-mode=both proprietary-extensions=post-2.9.25 radio-name=XXXXXXXXXX \
rate-selection=advanced rate-set=default scan-list=default security-profile=default ssid=SOME-LINK \
station-bridge-clone-mac=00:00:00:00:00:00 supported-rates-a/g=6Mbps,9Mbps,12Mbps,18Mbps,24Mbps,36Mbps,48Mbps,54Mbps \
tdma-period-size=3 tx-power=22 tx-power-mode=card-rates update-stats-interval=disabled wds-cost-range=50-150 \
wds-default-bridge=none wds-default-cost=100 wds-ignore-ssid=no wds-mode=disabled wireless-protocol=nstreme \
wmm-support=disabled
/interface wireless manual-tx-power-table
set wlan1 manual-tx-powers="1Mbps:17,2Mbps:17,5.5Mbps:17,11Mbps:17,6Mbps:17,9Mbps:17,12Mbps:17,18Mbps:17,24Mbps:17,36Mbps\
:17,48Mbps:17,54Mbps:17,HT20-0:17,HT20-1:17,HT20-2:17,HT20-3:17,HT20-4:17,HT20-5:17,HT20-6:17,HT20-7:17,HT40-0:17,HT4\
0-1:17,HT40-2:17,HT40-3:17,HT40-4:17,HT40-5:17,HT40-6:17,HT40-7:17"
/interface wireless nstreme
set wlan1 disable-csma=no enable-nstreme=yes enable-polling=yes framer-limit=3200 framer-policy=best-fit
/interface wireless align
set active-mode=yes audio-max=-20 audio-min=-100 audio-monitor=00:00:00:00:00:00 filter-mac=00:00:00:00:00:00 \
frame-size=300 frames-per-second=25 receive-all=no ssid-all=no
/interface wireless sniffer
set channel-time=200ms file-limit=10 file-name="" memory-limit=10 multiple-channels=no only-headers=no receive-errors=no \
streaming-enabled=no streaming-max-rate=0 streaming-server=0.0.0.0
/interface wireless snooper
set channel-time=200ms multiple-channels=yes receive-errors=no