hostap_plx w/ WEP causes 90% packet loss

From: Munir Nassar (
Date: 2002-08-07 19:25:31 UTC


i want to setup one of my boxen to be an Access point, i got the USR2445 which is a USRobotics Prism2 3.3v card stuck to a plx bridge

i can use the hostap_plx drivers without a problem but when i enable WEP stations cannot connect to the AP and i cannot ping, (tcpdump shows arp problems)

if i ping both ways simultaniously i get about 90% traffic loss

lspci -vv shows:
00:0d.0 Network controller: Unknown device 16ec:3685 (rev 02)

        Subsystem: Unknown device 1638:00e1
        Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- 
ParErr- Stepping- SERR- FastB2B-
        Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- 
<TAbort- <MAbort- >SERR- <PERR-
        Interrupt: pin A routed to IRQ 11
        Region 1: I/O ports at 1080 [size=128]
        Region 2: Memory at 41000000 (32-bit, non-prefetchable) [size=4K]
        Region 3: I/O ports at 1040 [size=64]

and i added the manfids to the hostap_plx source as follows: <SNIP more code>

{ 0xd601, 0x0005 } /* Zcomax XI-325H 200mW */,
{ 0x16ec, 0x3685 } /* USR2445*/,
{ 0, 0}


i know WEP works on the card because i plugged it into a laptop and i was able to use it as an AP,

i am at work now and i used one of the windows laptops here to flash the card to the latest firmware, i will let you know if this fixes the problem.


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