--- title: Melco connection troubleshooting description: In the event your Melco machine stops communicating with the PC we need to follow the steps below. --- [Skip to content](https://help.amayauk.com/melco-connection-troubleshooting#main-content) [Submit a ticket](https://help.amayauk.com/kb-tickets/new?hsLang=en) [![Amaya New Logo White](https://help.amayauk.com/hs-fs/hubfs/Amaya%20New%20Logo%20White.png?width=270&height=120&name=Amaya%20New%20Logo%20White.png)](https://www.amayauk.com/) Open main navigation Close main navigation - [Submit a ticket](https://help.amayauk.com/kb-tickets/new) How can we help you? - There are no suggestions because the search field is empty. 1. [Help Centre](https://help.amayauk.com/?hsLang=en) 2. [Melco](https://help.amayauk.com/melco?hsLang=en) 3. [Troubleshooting](https://help.amayauk.com/melco?hsLang=en#troubleshooting) # Melco connection troubleshooting Use this checklist if your Melco machine stops communicating with the PC. - **Check the network connections.** - Check all cables (swap with a known working machine if possible). - If connected via a switch or hub, plug the embroidery machine directly into the computer. - Check whether Windows has recently updated. - Temporarily turn off any antivirus and firewall software that could be blocking the connection. - **Confirm the network connection in Melco OS.** - Go to *Tools \> Options*. ![](https://help.amayauk.com/hs-fs/hubfs/image-png-Oct-02-2025-10-18-47-4332-AM.png?width=396&height=175&name=image-png-Oct-02-2025-10-18-47-4332-AM.png) - Open the *Ethernet* tab. Select the LAN card connected to the machines (it should be highlighted in blue), then click *Apply* and *OK*. - Reboot Melco OS and the machine to reconnect. - **Use the advanced connection menu (enable via registry if required).** **Warning:** Only make the change described below. Editing other registry keys can cause Windows system errors. - - In the Windows search bar, type *RegEdit* and open the Registry Editor. - Navigate to: `HKEY_CURRENT_USER\Software\Melco\MC\Settings` - Double-click `EnetAdvanced` and change the value from `0` to `1`, then close the Registry Editor. The advanced Ethernet menu will now be available in Melco OS. ![](https://help.amayauk.com/hs-fs/hubfs/image-png-Oct-02-2025-10-27-08-0122-AM.png?width=670&height=451&name=image-png-Oct-02-2025-10-27-08-0122-AM.png) - If no machines appear, the machine may require a Manual USB Reflash, follow the steps on the link below to complete this: - [Manual USB Reflash](https://help.amayauk.com/emt16x-how-to-flash-the-new-main-pcb-manually?hsLang=en) - If you see the machine in the left box with a `+` next to it, it needs to be *Unpaired* and *Reclaimed*. Select the machine on the left and click *Unpair*. ![](https://help.amayauk.com/hs-fs/hubfs/image-png-Oct-02-2025-10-27-22-8393-AM.png?width=555&height=856&name=image-png-Oct-02-2025-10-27-22-8393-AM.png) - Close the network settings window, then reopen it. The machine should now appear without a `+`. Select the machine and click the `>>>>>` button. The machine should beep, appear in the right-hand box, and sync to the computer. - **Reinstall the software.** - If the above does not work, reinstall Melco OS. Follow the steps in the Melco OS Installation Guide (available on the support page). - **Try a different PC.** - Install the software on another PC and confirm the machine can connect from there. - **Still having issues?** The problem may be an electrical failure and a service visit could be required. 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