R52n rx/tx problems 2.4 b/g mode

[rajzla]

Hi,

We have upgrade our AP with r52n cards. Before upgrade all was working fine with dcma-81 and r52 and i dont now why did i change them . Router boards are 433ah and 493ah. Now with r52n signal strength is same as before but rx/tx rate is very bad 1/1 Mbps (and before it was 54/54 for same client with -60 dBm). Also CCQ is on 433 at 10% and 493 at 40% and before it was not unde 80%.

We have tryed 4.3.,4.4,and 4.5 mikrotik versions but result is same.

On that router boards we have also dcma-81 links to other ap in our netvork and that links are working like before.

supout.7z (229 KB)

[aaa]

Can you post R52n card all wireless settings?

[congo]

I have similar problems. I think this is a configuration issue in my case, so I’m trying to experiment with hw.retries, adaptive noise immunity and other advanced settings (after successfully picking a fairly free channel). This ap is indoors, with notebooks connecting from a few meters, so I think it should work okay. When I started to experiment, rates were sliding between 54 and 1Mbps, with an overall CCQ of 10-20% if there was more than 5-6 Mbps traffic.

Current settings, that seem to work (we have to perform some load tests yet):

ack-timeout=indoors
adaptive-noise-immunity=ap-and-client-mode
band=2.4ghz-onlyg
basic-rates-a/g=6Mbps
basic-rates-b=1Mbps
dfs-mode=none
disable-running-check=no
disconnect-timeout=3s
frame-lifetime=0
frequency=2422
frequency-mode=manual-txpower
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-extension-channel=disabled
ht-guard-interval=any
ht-rxchains=0
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
ht-txchains=0
hw-fragmentation-threshold=disabled
hw-protection-mode=none
hw-protection-threshold=0
hw-retries=7
l2mtu=2290
max-station-count=100
mode=ap-bridge
on-fail-retry-time=100ms
periodic-calibration=default
periodic-calibration-interval=60
preamble-mode=both
proprietary-extensions=post-2.9.25
radio-name=SOLITRON
rate-set=default
scan-list=default
supported-rates-a/g=6Mbps,9Mbps,12Mbps,18Mbps,24Mbps,36Mbps,48Mbps,54Mbps
supported-rates-b=1Mbps,2Mbps,5.5Mbps,11Mbps
tx-power-mode=default
update-stats-interval=disabled
wds-mode=disabled
wmm-support=disabled

[rajzla]

Hi, i dont know how to get all that settings printed. i have started to think that it is card problem in rb433 because r52n in rb493 is working with less problems but on both card rx is almost samo for all clients 1 Mbps. This is outdoor wlan network and in my case im connecting from about 1 km distance with tew-430apb client (45% signal strength almost same as before with r52).

Here is picture of my cennetion. I have tried to change to g only mode, and some of yours advanced settings but then it was even worse. i dont understand why he connects me to 1 Mbps - 81dBm when the best is 36 Mbps - 69 dBm.

I have one more r52n card and rb411 client so i will try to connect with him to test. i have already try indoor 411+r52n to my home wlan router and for first 10 minutes from 1m distance i had sam problem 1/1 Mbps and then it started to work ok after some time.