sick_tim unable to connect to laserscanner

edit

Hi,

I tried to start the sick_tim package, but it can't connect to the TiM Laserscanner. With Windows and SOPAS ET I can config the scanner. The IP is set to 169.254.8.76 and the Subnetmask to 255.255.0.0 With Ubuntu 12.04 and ROS Hydro I can ping the scanner but with ROS I can't connect.

Here the console output:

roslaunch sick_tim sick_tim551_2050001.launch
... logging to /home/youbot/.ros/log/e93740a6-eac1-11e5-8203-000bab452ad7/roslaunch-youbot-mobile-24935.log
Checking log directory for disk usage. This may take awhile.
Press Ctrl-C to interrupt
Done checking log file disk usage. Usage is <1GB.

started roslaunch server http://youbot-mobile:60044/

SUMMARY
========

PARAMETERS
 * /robot_description
 * /rosdistro
 * /rosversion
 * /sick_tim551_2050001/hostname
 * /sick_tim551_2050001/port
 * /sick_tim551_2050001/timelimit

NODES
  /
    robot_state_publisher (robot_state_publisher/state_publisher)
    sick_tim551_2050001 (sick_tim/sick_tim551_2050001)

ROS_MASTER_URI=http://localhost:11311

core service [/rosout] found
process[robot_state_publisher-1]: started with pid [24956]
process[sick_tim551_2050001-2]: started with pid [24974]
[ INFO] [1458055448.586484076]: Waiting 5 seconds for device to connect.
[ERROR] [1458055448.587026044]: Failed to connect to 169.254.8.76:2112
[FATAL] [1458055448.587163911]: Could not connect to host 169.254.8.76:2112
[FATAL] [1458055448.587592177]: Failed to init device: 1
[ERROR] [1458055448.588381034]: write error for command: sEN LMDscandata 0

SOPAS - Error stopping streaming scan data!
sick_tim driver exiting.