Does anyone of You have the same expierience?

RB911G-5HPnD cannot connect to 10MHZ APs?

Are you using v6.2 ? Post full config from the wireless of CPE and AP

Hello Normis,

6.2 was not tested yet.

we have several 911 CPE to this AP connected
# aug/30/2013 15:46:54 by RouterOS 6.1
# software id = U8JG-GTUL
#
/interface wireless
set 0 band=5ghz-a/n channel-width=10mhz country=germany disabled=no \
frequency=5325 frequency-mode=regulatory-domain ht-rxchains=0,1 \
ht-txchains=0,1 l2mtu=2290 name=wlan1-JC220 radio-name=CXXXXXXXX ssid=\
RSB-BIR-S23

AP is 912UAG-5HnD
# aug/30/2013 15:44:19 by RouterOS 6.1
# software id = 6IRC-AQDP
#
/interface wireless
set 0 band=5ghz-onlyn channel-width=10mhz disabled=no frequency=5320 \
frequency-mode=superchannel ht-ampdu-priorities=0,1,2 ht-basic-mcs=\
mcs-0,mcs-1,mcs-2,mcs-3,mcs-4,mcs-5,mcs-6,mcs-8,mcs-9,mcs-10,mcs-11 \
ht-guard-interval=long ht-rxchains=0,1 ht-supported-mcs="mcs-0,mcs-1,mcs-2\
,mcs-3,mcs-4,mcs-5,mcs-6,mcs-8,mcs-9,mcs-10,mcs-11,mcs-12,mcs-13,mcs-14,mc\
s-16,mcs-17,mcs-18,mcs-19,mcs-20,mcs-21,mcs-22,mcs-23" ht-txchains=0,1 \
l2mtu=2290 mode=ap-bridge nv2-cell-radius=15 nv2-preshared-key=\
XXXXXXXXXXXXX nv2-queue-count=4 rate-set=configured ssid=\
RSB-BIR-S23 supported-rates-a/g=6Mbps tdma-period-size=3 tx-power=13 \
tx-power-mode=all-rates-fixed wireless-protocol=nv2

But with new shipment a connection to 10MHZ AP is not possible.

sorry forgott:

the CPE in the first post is connected to the AP.

tihs CPE will not connect to AP
if you scan it will not see any 10mhz AP we tried 5.23 - 5.25 an 6.0 + 6.1

# aug/30/2013 14:04:48 by RouterOS 6.1
# software id = N193-VI98
#
name="wlan1" mtu=1500 mac-address=00:0C:42:F8:C3:21 arp=enabled
disable-running-check=no interface-type=Atheros AR9300
radio-name="CXXXXXXX" mode=station ssid="RSB-BIR-S23" area=""
frequency-mode=regulatory-domain country=germany antenna-gain=0
frequency=5180 band=5ghz-a/n channel-width=10mhz scan-list=default
wireless-protocol=any rate-set=default
supported-rates-a/g=6Mbps,9Mbps,12Mbps,18Mbps,24Mbps,36Mbps,48Mbps,54Mbps
basic-rates-a/g=6Mbps max-station-count=2007 distance=dynamic tx-power=17
tx-power-mode=all-rates-fixed noise-floor-threshold=default
nv2-noise-floor-offset=default periodic-calibration=default
periodic-calibration-interval=60 dfs-mode=none wds-mode=disabled
wds-default-bridge=none wds-default-cost=100 wds-cost-range=50-150
wds-ignore-ssid=no update-stats-interval=disabled bridge-mode=enabled
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 ht-ampdu-priorities=0,1,2
ht-guard-interval=long
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,mcs-13,mcs-14,mcs-15,mcs-16,mcs-17,mcs-
18,mcs-19,mcs-20,mcs-21,mcs-22,mcs-23
ht-basic-mcs=mcs-0,mcs-1,mcs-2,mcs-3,mcs-4,mcs-5,mcs-6,mcs-7
ht-txchains=0,1 ht-rxchains=0,1 ht-amsdu-limit=8192
ht-amsdu-threshold=8192 tdma-period-size=2 nv2-queue-count=2
nv2-qos=default nv2-cell-radius=30 nv2-security=disabled
nv2-preshared-key="" hw-retries=7 frame-lifetime=0
adaptive-noise-immunity=none hw-fragmentation-threshold=disabled
hw-protection-mode=none hw-protection-threshold=0 frequency-offset=0
rate-selection=advanced multicast-helper=default
multicast-buffering=enabled

I can confirm, our shipment of 911G-2HPnD came with 5.25 on them. If you scan with channel-width=10MHz, you get results containing APs on 20MHz channels, and it won't associate to any APs on 10MHz channels.

Upgrading to 6.4 fixed the issue.

I noticed this with the Groove A 52. I think it had 5.23 or 5.24 as shipped, upgraded to 5.25 and 5MHz and 10MHz channels worked fine.

+++++SOLVED+++++++

This issue has been solved with ROS 6.2/6.3 on AP and client.

FYI this was in the changelog for 5.25


What's new in 5.25 (2013-Apr-25 15:59):
*) wireless - update required when using small width channel RB2011 RB9xx