D-link DUB-E100

My D-link USB DUB-E100 adapter seems to work only for a while
on recent and older 5.1-CURRENT. After that it seems to lose
sight of it's PHY;

Also on boots it complains about MII without any PHY! randomly,
pulling and re-plugging it will eventually get it running and
it works for 5-10 minutes after failing again. This happens on
two different desktops and IBM X31 thinkpad I've tried so far.
(all running current, oldest is about 1.5mo old, most recent
two days old)

It's also curious that the LINK led does not work on the adapter.

  axe0: read PHY failed
axe0: read PHY failed
axe0: read PHY failed
axe0: read PHY failed
axe0: usb error on rx: IOERROR
axe0: usb error on rx: IOERROR
axe0: usb error on rx: IOERROR
axe0: usb error on rx: IOERROR
axe0: usb error on rx: IOERROR
axe0: usb error on rx: IOERROR
axe0: usb error on rx: IOERROR
axe0: at uhub0 port 1 (addr 2) disconnected
bmtphy0: detached
miibus0: detached
axe0: detached
axe0: D-Link 10/100 ethernet adapter, rev 2.00/0.01, addr 2
axe0: Ethernet address: 00:40:05:90:95:5d
axe0: MII without any PHY!
device_probe_and_attach: axe0 attach returned 6
ugen0: D-Link 10/100 ethernet adapter, rev 2.00/0.01, addr 2
ugen0: at uhub0 port 1 (addr 2) disconnected
ugen0: detached
axe0: D-Link 10/100 ethernet adapter, rev 2.00/0.01, addr 2
axe0: Ethernet address: 00:40:05:90:95:5d
miibus0: <MII bus> on axe0
bmtphy0: <BCM5221 10/100baseTX PHY> on miibus0
bmtphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto

Pete