[uaPERSON]

I followed the steps for connecting RoboDK to KUKA robot using c3setup 1.6.1. But even though I am successfully able to ping the robot, it keeps displaying "Disconnected (socket error)" in the log. What could be causing this issue?

[Dmitry]

Could you please specify the version of your control system?
This page has information about configuring the control system for the C3 Bridge Interface: https://robodk.com/doc/en/Robots-KUKA-Ro...DriverKUKA
Special attention should be paid to the NAT settings (KUKA➔Start-up➔Network configuration➔Advanced, NAT➔Add port➔Port number 7000).

[uaPERSON]

Could you please specify the version of your control system?
This page has information about configuring the control system for the C3 Bridge Interface: https://robodk.com/doc/en/Robots-KUKA-Ro...DriverKUKA
Special attention should be paid to the NAT settings (KUKA➔Start-up➔Network configuration➔Advanced, NAT➔Add port➔Port number 7000).

It is a KRC4 control system. I had followed all the instructions on the link you have provided, including adding new port 7000. I do suspect it could be a network issue, but the firewall and internet access on pc were off when this issue began.