I have Mikrotik v3.2 on a RB333 with 3 Senao NMP- 8602 + S: High Power (25dbm) Mini-PCI Adapter in Ap bridge mode and 3 18 dBi panels shooting at aprox. 32 clients in a city. This is my configuration:

0 R name="chirnogi1" mtu=1500 mac-address=00:19:5B:6E:04:C4 arp=enabled
disable-running-check=no interface-type=Atheros AR5413
radio-name="00026F4BE933" mode=ap-bridge ssid="chirnogi 1" area=""
frequency-mode=manual-txpower country=romania antenna-gain=3
frequency=2412 band=2.4ghz-b/g scan-list=default rate-set=default
supported-rates-b=1Mbps,2Mbps,5.5Mbps,11Mbps
supported-rates-a/g=6Mbps,9Mbps,12Mbps,18Mbps,24Mbps,36Mbps,48Mbps,
54Mbps
basic-rates-b=1Mbps basic-rates-a/g=6Mbps max-station-count=350
ack-timeout=45 tx-power=21 tx-power-mode=card-rates
noise-floor-threshold=default periodic-calibration=disabled
periodic-calibration-interval=600 burst-time=disabled dfs-mode=none
antenna-mode=ant-a wds-mode=disabled wds-default-bridge=none
wds-default-cost=100 wds-cost-range=50-150 wds-ignore-ssid=no
update-stats-interval=disabled default-authentication=yes
default-forwarding=yes default-ap-tx-limit=0 default-client-tx-limit=0
proprietary-extensions=post-2.9.25 wmm-support=disabled hide-ssid=no
security-profile=default disconnect-timeout=3s on-fail-retry-time=100ms
preamble-mode=both compression=no allow-sharedkey=no
station-bridge-clone-mac=00:00:00:00:00:00 hw-retries=4
frame-lifetime=0 adaptive-noise-immunity=no

1 R name="chirnogi2" mtu=1500 mac-address=00:1B:FC:45:2D:4F arp=enabled
disable-running-check=no interface-type=Atheros AR5413
radio-name="00026F4BE934" mode=ap-bridge ssid="chirnogi 2" area=""
frequency-mode=manual-txpower country=romania antenna-gain=4
frequency=2437 band=2.4ghz-b/g scan-list=default rate-set=default
supported-rates-b=1Mbps,2Mbps,5.5Mbps,11Mbps
supported-rates-a/g=6Mbps,9Mbps,12Mbps,18Mbps,24Mbps,36Mbps,48Mbps,
54Mbps
basic-rates-b=1Mbps basic-rates-a/g=6Mbps max-station-count=350
ack-timeout=45 tx-power=16 tx-power-mode=card-rates
noise-floor-threshold=default periodic-calibration=disabled
periodic-calibration-interval=600 burst-time=disabled dfs-mode=none
antenna-mode=ant-a wds-mode=disabled wds-default-bridge=none
wds-default-cost=100 wds-cost-range=50-150 wds-ignore-ssid=no
update-stats-interval=disabled default-authentication=yes
default-forwarding=yes default-ap-tx-limit=0 default-client-tx-limit=0
proprietary-extensions=post-2.9.25 wmm-support=disabled hide-ssid=no
security-profile=default disconnect-timeout=3s on-fail-retry-time=100ms
preamble-mode=both compression=no allow-sharedkey=no
station-bridge-clone-mac=00:00:00:00:00:00 hw-retries=4
frame-lifetime=0 adaptive-noise-immunity=no

2 R name="chirnogi3" mtu=1500 mac-address=00:13:46:70:71:6C arp=enabled
disable-running-check=no interface-type=Atheros AR5413
radio-name="00134670716C" mode=ap-bridge ssid="chirnogi 3" area=""
frequency-mode=manual-txpower country=romania antenna-gain=4
frequency=2467 band=2.4ghz-b/g scan-list=default rate-set=default
supported-rates-b=1Mbps,2Mbps,5.5Mbps
supported-rates-a/g=6Mbps,9Mbps,12Mbps,18Mbps,24Mbps,36Mbps,48Mbps,
54Mbps
basic-rates-b=1Mbps basic-rates-a/g=6Mbps max-station-count=350
ack-timeout=40 tx-power=21 tx-power-mode=card-rates
noise-floor-threshold=default periodic-calibration=disabled
periodic-calibration-interval=600 burst-time=disabled dfs-mode=none
antenna-mode=ant-a wds-mode=disabled wds-default-bridge=none
wds-default-cost=100 wds-cost-range=50-150 wds-ignore-ssid=no
update-stats-interval=disabled default-authentication=yes
default-forwarding=yes default-ap-tx-limit=0 default-client-tx-limit=0
proprietary-extensions=post-2.9.25 wmm-support=disabled hide-ssid=no
security-profile=default disconnect-timeout=3s on-fail-retry-time=100ms
preamble-mode=both compression=no allow-sharedkey=no
station-bridge-clone-mac=00:00:00:00:00:00 hw-retries=4
frame-lifetime=0 adaptive-noise-immunity=no




Good signal levels, but I have nasty pings, sometimes they are between 2-6 ms, but most of the time they go to 18-150-800 ms with no substantial reasons… no traffic, anything.
Does anyone have any idea?
I`ve tried changing the channels, the ack timeout, calibration, noise immunity, tx power… nothing seems to solve my problem.

Someone told me 2.9.x doesn`t support routerboards from the 300 family. I tried to downgrade but it won't work.

Someone told me 2.9.x doesn`t support routerboards from the 300 family. I tried to downgrade but it won't work.

Yes. 2.9.x is not ported to PowerPC (3xx,6xx). So if you want to use these boards you
have to use 3.x.

Stefan

set interfaces only b

Antenna seperation is needed...
Ever wonder why Cell towers have the sectors so widely seperated?

Also Use radios on seperate Routerboards, contained in seperate enclosures, to accomplish signal isolation.

are your interfaces bridged ?
how far is your panels from each other ?
and did you check if your channel is clear ?

are your interfaces bridged ?
how far is your panels from each other ?
and did you check if your channel is clear ?

Interfaces bridged, about 1 meter (3 feet i guess) between panels, channels clear.

too close antennas try add reflectors behind your panels and make them further from each other .

valypetre,

Good signal levels and high pings means interference.

regards.

I've seen that before; my solution is B-only mode.

Take a look at tx vs rx signal. you're getting noise, a radio going out or a corroding connector.

Looks like the rx speeds are almost always lower, likely noise at the AP. The CPE's get good signal, the AP gets poor. Tried different channel width?

I'd look around for competition or something. I've seen a 2.4GHz camera shut down a wireless network.