You are reading an old version of this documentation. If you want up-to-date information, please have a look at 4.3 .

Connection lost?

If you have lost the connection with the Asycube, robot, EYE+ Studio, try to check if they are correctly configured.


If you have lost the connection with the camera, go directly to section Camera connection lost.

To do this, connect directly to the device with an Ethernet cable. Configure your computer to be under the same network as the connected device. Open the terminal and ping the device to the IP address on which it is supposed to be configured (Table 38). For example, to ping the Asycube you must enter in your terminal the command ping

Table 38 Default IP address of each connected device


IP address

Subnet mask




EYE+ Studio


7171, 171, 17171

If your device is correctly connected, the command answer should look like this:

Pinging with 32 bytes of data:
Reply from bytes=32 time<1ms TTL=128
Reply from bytes=32 time<1ms TTL=128
Reply from bytes=32 time<1ms TTL=128
Reply from bytes=32 time<1ms TTL=128

Ping statistics for
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 0ms, Maximum = 0ms, Average = 0ms

If not, your device is not properly configured or not correctly connected, please refer to the appropriate section below.

Camera connection lost

Since the IP address of the camera cannot be changed, you have probably lost the connection with it. Reboot the camera by unplugging the cable. Wait a few seconds and reconnect the cable. After a moment, check your connection through EYE+ Studio on the HOME page. If the status of the EYE+ is Ready, your camera is connected. The camera LED should start flashing green.


To have EYE+ in ready state, the Asycube must be connected and detected by EYE+ as well. To check the Asycube connection, go to CONFIGURATION page under Asycube and check if the current status of the Asycube is Connected.

Table 39 Connection status of the camera

LED behavior

Camera status

LED off

Not powered



Flashing red

Powered but no Ethernet link established

Flashing green

Powered, Ethernet link established, but no network traffic


Powered, Ethernet link established and there is a network traffic

Asycube connection lost

Try first to reboot the Asycube by power it off and unplugging the Ethernet cable. Wait a few seconds and reconnect the cables. After a moment, check your connection through EYE+ Studio on the CONFIGURATION page under Asycube. If the current status of the Asycube is Connected, your Asycube is connected.

If the Asycube is still not detected, your Asycube is probably no longer configured with the default IP address and port. You must change the configuration of your Asycube to match the Table 38. If you need help, please contact us.

Robot connection lost

If your robot is not correctly configured, set the correct configuration so that it is on the same subnet as the robot EYE+ Controller port. If you cannot set your robot in the same subnet, you can change the robot port configuration through EYE+ Studio under CONFIGURATION and with Network (see Communication).

EYE+ Studio connection lost

If you lose connection to EYE+ Studio because you do not know the actual config port configuration, you can use the EYE+ Locator to find your EYE+. Alternatively, you can still access EYE+ Studio using a direct connection via the Robot port.


The Robot port is not dedicated to access EYE+ Studio, but it can be used if the Configuration port is not accessible anymore for any reason. Through this connection you will be able to read or edit the settings of the Configuration port.

Direct connection through Robot port

Direct connection is a direct Ethernet connection between your computer and EYE+. To do so, connect the RJ45 port of your computer to the RJ45 port of the EYE+ Robot port using an Ethernet cable. The Robot port has a fixed default IP address (Table 17).


Fig. 284 Direct connection through Robot port

Change the IPv4 configuration of your computer by choosing an IP address and subnet mask so that it is on the same network as the EYE+ Controller. For example, apply the configuration presented in Table 40.

Table 40 Example of IPv4 configuration (computer side)

Ethernet port

IP address

Subnet mask

Computer RJ45

Once your computer is properly configured, open your web browser and enter the Robot port’s IP address in the address bar (e.g. The home page (Fig. 285) should appear.


Fig. 285 Dashboard with EYE+ in ready state

Go to CONFIGURATION and click on Network. From Network Interfaces Settings, go under CONFIG. From here, you can read the Configuration port settings.


If the home page does not have the same display as in Fig. 285, refer to Recommended web browsers and Interface display.