Im having  problems with a usb wifi card.
Once every 1 hour i need to unplug it and replug :-(
The card is:
port 5 addr 2: high speed, power 500 mA, config 1, USB2.0
WLAN(0x1211), ZyDAS(0x0ace), rev 48.10
Connected to:
addr 1: high speed, self powered, config 1, EHCI root hub(0x0000),
nVidia(0x0000), rev 1.00

The dmesg when connection brokes says:
zyd0: <ZyDAS USB2.0 WLAN, class 255/255, rev 2.00/48.10, addr 2> on uhub1
zyd0: HMAC ZD1211, FW 46.05, RF AL2230, PA 0, address 00:11:e2:07:1c:a0
zyd0: WARNING: using obsoleted IFF_NEEDSGIANT flag
zyd0: Ethernet address: 00:11:e2:07:1c:a0
zyd0: link state changed to UP
zyd0: zyd_read sleep timeout
zyd0: device timeout
zyd0: could not transmit buffer: TIMEOUT

Then, i unplug it:
zyd0: at uhub1 port 5 (addr 2) disconnected
zyd0: link state changed to DOWN
zyd0: zyd_read sleep timeout
zyd0: could not send command (error=IOERROR)
zyd0: could not send command (error=IOERROR)
zyd0: could not send command (error=IOERROR)
zyd0: zyd_read sleep timeout
zyd0: could not send command (error=IOERROR)
zyd0: could not send command (error=IOERROR)
zyd0: could not send command (error=IOERROR)
zyd0: detached

Then i plug it and starts working again:
zyd0: <ZyDAS USB2.0 WLAN, class 255/255, rev 2.00/48.10, addr 2> on uhub1
zyd0: HMAC ZD1211, FW 46.05, RF AL2230, PA 0, address 00:11:e2:07:1c:a0
zyd0: WARNING: using obsoleted IFF_NEEDSGIANT flag
zyd0: Ethernet address: 00:11:e2:07:1c:a0
zyd0: link state changed to UP

The setup is:
FreeBSD 7.2-RELEASE-p1 #0: Tue Jun  9 21:30:43 UTC 2009
r...@i386-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC

And I start the netif form rc.conf:
ifconfig_zyd0="WPA DHCP"

Any help sill be really appreciated.
Sdav
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