Z-Com ZI-325HP+ - Ubuntu 6.10 - very slow connection

[Dominik Geisel]

Hi there,

I have a new Z-Com ZI-325HP+ running with Ubuntu 6.10 (2.6.17-10generic) on
a IBM X-series laptop. The card is running fine and connecting to my AP,
which is about 10 m away with one medium wall inbetween, with 11Mbit all the
time. I usw WPA-TKIP encryption and the NetworkManager tool with
gnome-applet to connect.
My problem is, that I get very low transfer speeds. I tried downloading via
FTP from another machine in the local LAN and got about 200 Kbyte/sec. With
placing the laptop 1 m in direct sight to the AP I get no more than 300
Kbyte/sec.
I have an Atheros 802.11bg card working with madwifi-drivers and get around
2000 Kbyte/sec with this card (sure, it is g and not b).
Where could be the problem?

iwconfig:
--------------------
wifi0     IEEE 802.11b  ESSID:"Corpus"
          Mode:Managed  Frequency:2.472 GHz  Access Point:
00:04:0E:2B:4C:ED
          Bit Rate:11 Mb/s   Sensitivity=1/3
          Retry min limit:8   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off

wlan0     IEEE 802.11b  ESSID:"Corpus"
          Mode:Managed  Frequency:2.472 GHz  Access Point:
00:04:0E:2B:4C:ED
          Bit Rate:11 Mb/s   Sensitivity=1/3
          Retry min limit:8   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality=41/70  Signal level=-33 dBm  Noise level=-74 dBm
          Rx invalid nwid:0  Rx invalid crypt:1  Rx invalid frag:0
          Tx excessive retries:19  Invalid misc:1018   Missed beacon:0


dmesg:
--------------------
[17180778.356000] pccard: PCMCIA card inserted into slot 0
[17180816.068000] pcmcia: registering new device pcmcia0.0
[17180816.332000] hostap_cs: 0.4.4-kernel (Jouni Malinen <jkmaline at cc.hut.fi
>)
[17180816.336000] hostap_cs: setting Vcc=33 (constant)
[17180816.336000] Checking CFTABLE_ENTRY 0x01 (default 0x01)
[17180816.336000] IO window settings: cfg->io.nwin=1 dflt.io.nwin=1
[17180816.336000] io->flags = 0x0046, io.base=0x0000, len=64
[17180816.336000] hostap_cs: Registered netdevice wifi0
[17180816.376000] hostap_cs: index 0x01: , irq 3, io 0x3100-0x313f
[17180816.572000] prism2_hw_init: initialized in 196 ms
[17180816.572000] wifi0: NIC: id=0x800c v1.0.0
[17180816.572000] wifi0: PRI: id=0x15 v1.1.1
[17180816.572000] wifi0: STA: id=0x1f v1.8.4
[17180816.576000] wifi0: registered netdevice wlan0
[17180816.696000] ADDRCONF(NETDEV_UP): wifi0: link is not ready
[17180816.696000] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[17180816.764000] wifi0: LinkStatus=2 (Disconnected)
[17180816.764000] wifi0: LinkStatus: BSSID=44:44:44:44:44:44
[17180817.624000] wifi0: LinkStatus=1 (Connected)
[17180817.624000] wifi0: LinkStatus: BSSID=00:14:c1:2b:aa:6e
[17180817.624000] ADDRCONF(NETDEV_CHANGE): wifi0: link becomes ready
[17180817.624000] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[17180820.260000] wifi0: LinkStatus=4 (Access point out of range)
[17180820.260000] wifi0: LinkStatus: BSSID=00:14:c1:2b:aa:6e
[17180827.964000] wlan0: no IPv6 routers present
[17180841.824000] wifi0: LinkStatus=2 (Disconnected)
[17180841.824000] wifi0: LinkStatus: BSSID=00:14:c1:2b:aa:6e
[17180842.272000] wifi0: LinkStatus=2 (Disconnected)
[17180842.272000] wifi0: LinkStatus: BSSID=44:44:44:44:44:44
[17180842.284000] wifi0: LinkStatus=2 (Disconnected)
[17180842.284000] wifi0: LinkStatus: BSSID=44:44:44:44:44:44
[17180842.300000] wifi0: LinkStatus=2 (Disconnected)
[17180842.300000] wifi0: LinkStatus: BSSID=44:44:44:44:44:44
[17180842.312000] wlan0: Trying to join BSSID 00:04:0e:2b:4c:ed
[17180842.336000] wifi0: LinkStatus=1 (Connected)
[17180842.340000] wifi0: LinkStatus: BSSID=00:04:0e:2b:4c:ed
[17180842.340000] ADDRCONF(NETDEV_CHANGE): wifi0: link becomes ready


Thank you very much!
Dominik
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.shmoo.com/pipermail/hostap/attachments/20061214/2f5e9704/attachment.htm