contact to working wlan-stick simply gone

Until this morning I had a working wlan configuration.

Digitus DN-7003GC
Ndiswrapper
Installed drivers:
sis163u driver installed
modprobe config already contains alias directive

The wlan-stick is test and working with win xp.
both USB-Ports 1.1 are working with other devices.
under Ubuntu the LED of the stick doesn't start blinking
under System>networking>I can only chose to enable modem and Ethernet

Ethernet works well.

interfaces looks like this:

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface

iface eth0 inet static
address 192.168.3.230
netmask 255.255.255.0
network 192.168.3.0
broadcast 192.168.3.255
gateway 192.168.3.1
# dns-* options are implemented by the resolvconf package, if installed
dns-nameservers 192.168.3.1

iface wlan0 inet static
address 192.168.3.230
netmask 255.255.255.0
gateway 192.168.3.1
wireless-essid dflkgjdflkhjdlkgfjhlkhfh
wireless-key s:dgjskjfghkjfdhgkjfdh

-----------------

more information:

sudo ifconfig wlan0
Password:

wlan0: Fehler beim Auslesen der Schnittstelleninformation: Gerät nicht
gefunden (Error reading interface: Device not found!)

dmesg

[17179595.516000] ndiswrapper version 1.22 loaded (preempt=no,smp=yes)
> [17179595.592000] usbcore: registered new driver ndiswrapper
> [17179595.656000] Adding 746980k swap on
> /dev/disk/by-uuid/2ce59565-4db3-4ef6-8a0d-779d57aa1636. Priority:-1
> extents:1 across:746980k
> [17179595.752000] EXT3 FS on hda1, internal journal
> [17179597.868000] ACPI: AC Adapter [ACAD] (on-line)
> [17179597.944000] ACPI: Battery Slot [BAT1] (battery absent)
> [17179597.948000] ACPI: Battery Slot [BAT2] (battery absent)
> [17179597.976000] ACPI: Power Button (FF) [PWRF]
> [17179597.976000] ACPI: Sleep Button (CM) [SBTN]
> [17179597.976000] ACPI: Lid Switch [LID]
> [17179598.156000] ibm_acpi: ec object not found
> [17179598.200000] pcc_acpi: loading...
> [17179598.372000] ACPI: Video Device [VGA] (multi-head: yes rom: no
> post: no)
> [17179598.808000] powernow: PowerNOW! Technology present. Can scale:
> frequency and voltage.
> [17179598.816000] powernow: SGTC: 10000
> [17179598.816000] powernow: Minimum speed 500 MHz. Maximum speed 1200 MHz.
> [17179604.028000] apm: BIOS version 1.2 Flags 0x03 (Driver version 1.16ac)
> [17179604.028000] apm: overridden by ACPI.
> [17179610.372000] sonypi: Sony Programmable I/O Controller Driver v1.26.
> [17179610.376000] sonypi: failed to request ioports
> [17179610.376000] sonypi: probe of sonypi failed with error -16
> [17179621.420000] NET: Registered protocol family 10
> [17179621.420000] lo: Disabled Privacy Extensions
> [17179621.420000] ADDRCONF(NETDEV_UP): eth0: link is not ready
> [17179621.420000] IPv6 over IPv4 tunneling driver

Thank You!!