Hello @Steve224 ,

Here are some troubleshooting steps that may help:

1. Check Power Saving Mode: For wired powerline adapters, check if Power Saving Mode is enabled. You can disable it using the tpPLC utility. Refer to this FAQ for detailed instructions: How to enable/disable power saving mode on powerline adapters
2. Reposition the devices: Move the powerline extender closer to the router and the powerline adapter. Try placing them in the same room for testing to see if distance or electrical interference is cause.
3. Test the router connection: Test the internet connection by connecting your client devices directly to the main router. This will help determine if it is specific to the powerline connection or if it's a problem with the router itself.
4. Test specific devices: If the problem seems to be isolated to a specific client device, try connecting that device to a different network to see if the problem persists. Additionally, you can try using different Ethernet cables or ports for wired client devices to rule out any potential cable or port issues.