MA401 high collision and not so great performance.

"Lazy Bastard" <[email protected]>
Newsgroups gmane.os.freebsd.devel.mobile,gmane.network.wireless.bsd.general
Message-ID <[email protected]>
Hello

I'm using two MA401 (prism 2.5) and one MA301 to 
connect PC(FreeBSD) and Notebook(WinXP). 

When it's 1.5M apart each other in the same room, 
maximum speed I can get is 150KB up, 300KB down,
and when notebook is out of my room(about 6 meter), 90KB up and 200KB down(both are from client-notebook-'s perspective).

I swapped PCCARDs each other, tried every channel, tried ad-hoc instead of hostap, wep on/off... and everything I can think of but got almost identical result.  except channel thing..  I got better result from lower channel. 

Is it normal?

Here's dmesg and such..

wi0: <Netgear MA301> port 0x9400-0x943f,0x9800-0x987f mem 0xc7800000-0xc7800fff irq 3 at device 13.0 on pci0
wi0: 802.11 address: 00:09:5b:24:e1:e6
wi0: using RF:PRISM2.5 MAC:ISL3873
wi0: Intersil Firmware: Primary 1.00.07, Station 1.03.06

$ ifconfig wi0
wi0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        inet6 fe80::209:5bff:fe24:e1e6%wi0 prefixlen 64 scopeid 0x3 
        inet 192.168.0.1 netmask 0xffffff00 broadcast 192.168.0.255
        ether 00:09:5b:24:e1:e6
        media: IEEE 802.11 Wireless Ethernet autoselect <hostap> (DS/2Mbps <hostap>)
        status: associated
        ssid Hypercube_wireless 1:Hypercube_wireless
        stationname "FreeBSD WaveLAN/IEEE node"
        channel 2 authmode OPEN powersavemode OFF powersavesleep 100
        wepmode OFF weptxkey 1
        wepkey 1:128-bit wepkey 2:128-bit wepkey 3:128-bit wepkey 4:128-bit

netstat -i -I wi0
Name    Mtu Network       Address              Ipkts Ierrs    Opkts Oerrs  Coll
wi0    1500 <Link#3>      00:09:5b:24:e1:e6    57006     0    52367     0 23989
wi0    1500 fe80:3::209:5 fe80:3::209:5bff:        0     -        0     -     -
wi0    1500 192.168.0     192.168.0.1            212     -      171     -     -

$ netstat -w 1 -I wi0
            input          (wi0)           output
   packets  errs      bytes    packets  errs      bytes colls
         9     0        831         10     0       1092     0
        13     0        752         18     0       5769     0
        56     0       3216         97     0     148372    41
        80     0       4640        144     0     215382    86
        45     0       2598         80     0     121120    38
        92     0       5404        151     0     227130    84
        28     0       2138         38     0      51756     0
        61     0       3546         98     0     148372    55
        88     0       5056        156     0     236184    77
        45     0       2594         72     0     109008    20
        16     0        872         24     0      36336    23
        61     0       3526        105     0     158970    34
       162     0     182913        120     0      66886    79
       178     0     244828        104     0       6276    63
        72     0      86148         33     0       2002    17
       154     0     216292         93     0       6886    49
       167     0     241558         98     0       6012    54
       188     0     271408        100     0       6164    63
       144     0     197052         77     0       4935    38
       187     0     255894        101     0       6546    46
            input          (wi0)           output
   packets  errs      bytes    packets  errs      bytes colls
       176     0     232800        103     0       6339    66
       178     0     237612        105     0       6384    58
       160     0     210297         91     0       5568    51
         4     0        216          8     0       1082     0
         5     0        270         10     0       1113     0
         6     0        300         11     0       1185     0
         5     0        270         10     0       1167     0
        36     0       3346         37     0       3701     0
        50     0       5100         49     0       4998     0
        49     0       4998         49     0       4998     0
        49     0       4998         50     0       5100     0
        27     0       3044         27     0       2626     0
        12     0       2279         10     0       4801     0
         0     0          0          0     0          0     0
         0     0          0          0     0          0    23
         1     0         30          1     0         30     0
         0     0          0          0     0          0     0
         0     0          0          0     0          0     0
         0     0          0          0     0          0     0
         0     0          0          0     0          0     0
         0     0          0          0     0          0     0

$ wicontrol -C
[1/1]: 00:09:5b:24:e2:1e, 8.0.69.0, sig: -107, noise: -145, qual: 38

$ wicontrol wi0
NIC serial number:                      [ 99SA01000000 ]
Station name:                           [ FreeBSD WaveLAN/IEEE node ]
SSID for IBSS creation:                 [ Hypercube_wireless ]
Current netname (SSID):                 [ Hypercube_wireless ]
Desired netname (SSID):                 [ Hypercube_wireless ]
Current BSSID:                          [ 00:09:5b:24:e1:e6 ]
Channel list:                           [ 1fff ]
IBSS channel:                           [ 2 ]
Current channel:                        [ 2 ]
Comms quality/signal/noise:             [ 0 81 27 ]
dBm Coms Quality:                       [ 0 -73 -73 ]
Promiscuous mode:                       [ Off ]
Process 802.11b Frame:                  [ Off ]
Intersil-Prism2 based card:             [ 1 ]
Port type (1=BSS, 3=ad-hoc):            [ 6 ]
MAC address:                            [ 00:09:5b:24:e1:e6 ]
TX rate (selection):                    [ 3 ]
TX rate (actual speed):                 [ 2 ]
RTS/CTS handshake threshold:            [ 2347 ]
Create IBSS:                            [ Off ]
Access point density:                   [ 1 ]
Power Mgmt (1=on, 0=off):               [ 0 ]
Max sleep time:                         [ 100 ]
PRI Identity:                           [ 21 7 1 0 ]
STA Identity:                           [ 31 6 1 3 ]
Card ID register:                       [ 800c 0 1 0 ]
Regulatory Domains:                     [ usa, canada, 0x0 ]
Temperature Range:                      [ 1 ]
WEP encryption:                         [ Off ]
TX encryption key:                      [ 1 ]


Thank you for your time reading this.. any suggestion would be appreciated.




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