![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Disconnect the Ethernet cable from the printer's network port and plug this cable into the uplink port on the hub.
Note: This takes into account that the printer's Ethernet cable is connected to a switch on the network.
If unsure about the connection method:
- Try connecting the cable to any port adjacent to Port 1 to see whether the Ethernet LED illuminates.
- If the LED does not illuminate, try Port 1, which is often the Uplink port on the hub.
- Also, look for the presence of an uplink switch or button on the hub to check that it is active or turned ON.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Take one of your Ethernet cables and connect one end to the printer and the other end to an available port on the hub.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Disconnect the existing network cable from the computer performing the trace and, using your second extra cable, connect the computer to the hub.
Note: You can reconnect the original cable after capturing the network trace.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
There are now three Ethernet cables connected to the hub. Click here for an image.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
After installing and opening Wireshark, click this icon to initiate the trace, or click on Capture > Interfaces from the menu bar.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Select Start next to the network interface that is showing an IP address.
Note: This should be the host computer referred to in Step 4.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Click OK to begin the trace and perform the function related to the failing printer, multifunction product (MFP), or All-In-One (AIO). See this image.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
When you are ready to stop the trace, click this icon or click Capture > Stop from the application's menu bar.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
If you successfully emulated the network communication anomaly or failure, click this icon to save the trace. Alternatively, click File > Save As from the menu bar.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Submit the trace information to your Lexmark Technical Support representative. Include the printer's IP address (network settings page) and computer ipconfig information.