KUKA iiwa 14 R820 changed ip, now not connecting

  • I'm working with a KUKA iiwa 14 R820 robot. Up until today I had it working perfectly with an ethernet cable from my computer to the controller's X66 port, and using Sunrise Workbench to sync programs. However today, in an effort to simplify some networking stuff I have to do, I changed the IP address on the controller to I did this through the Station Setup page, and it worked fine and synced over then rebooted. Now it is not connecting at all to the robot through the same IP address, and I have no way of sending programs over. I can still ping the robot and get a response through my computer's CLI using the ping command, but Sunrise is just refusing to connect, and I'm not sure why or how to fix it. Here are images of Workbench and the cmd.exe output.

  • massula

    Approved the thread.
  • You choosed the address manually?

    An IP address starting with 169.254. normally means trouble (result of asking dhcp server for ip-address)

    Yeah I chose it manually. Was trying to put it on the same network as another peripheral I'm working with. Not very experienced with networking, didn't know about that. Is there any way to reconnect and change it back to the original 172.31. IP, or is it a case of using a recovery key now?

  • To my knowledge, we do not have one. I am an intern here, and the robot was already in use for months before the start of my contract. I don't think anyone has created a backup image of the working system before this incident.

  • It seems like you are having trouble connecting to your KUKA iiwa 14 R820 robot after changing its IP address. Don't worry, we can work through this and get your robot up and running again.

    Firstly, make sure that the IP address you changed it to is within the same subnet as your computer's IP address. For example, if your computer's IP address is, then your robot's IP address should be within the range of 169.254.1.x.

    Secondly, try checking if the Sunrise Workbench software is using the correct IP address to connect to the robot. Go to the "Connection" tab in Sunrise Workbench and make sure that the IP address listed there matches the IP address you set for your robot.

    If that doesn't work, try resetting the robot's IP address to its original value and see if that solves the problem. You can do this by going back to the Station Setup page and changing the IP address to what it was before.

    If none of these solutions work, it may be worth contacting KUKA customer support for further assistance. They will be able to troubleshoot the issue with you and provide more specific guidance on how to resolve the problem.

    I hope this helps, and let me know if you have an y further questions! you can send to me message or replay

  • To my knowledge, we do not have one.

    the question is why do you rely on others to do it? why didn't you make one yourself before touching the system? never touch the running system unless you really know what you are doing.

    1) read pinned topic: READ FIRST...

    2) if you have an issue with robot, post question in the correct forum section... do NOT contact me directly

    3) read 1 and 2

  • Solved it! Thanks to fhwedel-hoe from this thread, I hooked my controller up to a monitor, went into C:\KRC\Roboter\Config\User\Common\KLIConfig.xml, and changed the faulty line <IfConfig Name="KLI" Unit="5" IpConfigType="IpnetStatic" Ip="" Netmask="ffff0000"/> to have an ip of Did a reboot, and my Sunrise Workbench managed to connect using, and now the ip is changed back on the controller and smart pad as well.

    the question is why do you rely on others to do it? why didn't you make one yourself before touching the system? never touch the running system unless you really know what you are doing.

    Will definitely be making a backup now. I am an intern working with robotic systems for the first time. Obviously I didn't know I should have made a backup. Instead of actually trying to help here, all you did was try to belittle someone who's learning. Really not a great way to make a newcomer to this industry feel welcome. If you'd like to actually help, I'd greatly appreciate some instructions or if you could point me to somewhere with resources on how to create an image of the now-working system.

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