hi all, i am testing wifi mode of RB750 , i connect two PC to my wifi network , i check bandwidth from PC A to PCB over WIFI on RB751, so bandwidth is so bad, it have max 9Mb, min 200k… so i thing wifi of MT is good, so now i know that WIFI of MT only strong when use link between 2 RB of MT, with AP mode is not ok, so anybody have ever like me pls have me …i want bandwidth between two PC more 40Mb or more…
this is my diagram:
wifi bandwith.pdf (384 KB)
Which band is configured on your RB751?
What do you see at /interface wireless registration-table print stats?
RouterBOARD 751 wireless works great with any 802.11b/g/n compatible device
If you look at Wireless → Registrations what signal level and speed do you see the client connect at ?
Have you checked that you are using a clear channel ?
If using WPA2 make sure you use AES CCM (not TKIP)
There are quite a few settings which can be altered which may help
This is what I have on my RB at home:
band=2ghz-b/g/n
basic-rates-a/g=6Mbps,9Mbps,12Mbps,18Mbps,24Mbps,36Mbps,48Mbps,54Mbps
basic-rates-b=1Mbps,2Mbps,5.5Mbps,11Mbps
channel-width=20/40mhz-ht-below
country="united kingdom"
distance=indoors
frequency=2452
frequency-mode=regulatory-domain
ht-basic-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-guard-interval=long
ht-rxchains=0,1
ht-txchains=0,1
l2mtu=2290
max-station-count=20
mode=ap-bridge
radio-name=RB751U
tx-power-mode=card-rates
wireless-protocol=802.11
wmm-support=enabled
Hope that gives you a few ideas
Nick.
One thing I have noticed is that if my laptop card is in power saving mode (eg laptop running on batteries)
then the throughput is terrible when talking to my RB751U
Seems it doesn’t like the DTIM which the RB provides in the beacons.
I can fix it on linux using iwconfig eth1 power off