iiwa_stack ip configuration issue

[Dylan-CDL]

There was just one issue while following the WIKI to set up the IP of the KUKA and the Sunrise Workbench.

We used a separate Windows laptop to configure the Sunrise Workbench via port X66 on the KUKA cabinet, and the KONI port is connected to another ROS PC. However, there seems to be a problem with the connection between the Sunrise Workbench and the KUKA cabinet, which makes the configured IP always highlighted in red during the installation process in the Sunrise Workbench. Based on your experience, I wonder if you have any suggestions or insights in case I did anything wrong.

I have set the static IP and subnet for those three PCs:
The Sunrise Workbench laptop's static IP is 172.31.1.150, and the subnet mask is 255.255.0.0.
The KUKA cabinet Windows PC's static IP is 160.69.69.69, and the subnet mask is 255.255.0.0.
The Roscore in Ubuntu PC's static IP is 160.69.69.100, and the subnet mask is 255.255.255.0.

When I pinged the KUKA cabinet IP 160.69.69.69 from the ROS computer, I could receive a sequence of responses. However, the KUKA robot's PC with the default IP 172.31.1.147 always gave a time-out response when I pinged it from my Sunrise Workbench laptop. The IP was also highlighted in red after I clicked "install" in the StationSetup.cat. I'm not sure if this is caused by my IP settings, but I followed the WIKI to set up everything. I also tried to disable the wireless adapter and firewalls on my Sunrise Workbench laptop while synchronizing/installing the packets, but they still couldn't communicate. If you have any suggestions or potential solutions, I would really appreciate it!