Change MoCA Adapter to D-band High Mode, fixing DOCSIS3.1 interference issue.

Why: Some DOCSIS 3.1 modems/routers use up to 1218 MHz, which overlaps with MoCA’s default 1125–1675 MHz. This can cause interference.

What to do

1. Find MoCA settings. Open your MoCA adapter’s settings (app, web page, or hardware switches—see your model’s guide/video).

2. Change the band. Set the MoCA frequency band to D-band High (1350–1675 MHz).

3. Set LOF values. Update the LOF parameters as shown in your adapter’s guide/video.(Use the same LOF values on every MoCA device.)

4. Repeat for every device. Do steps 1–3 on all MoCA adapters on your network.

5. Restart each device. Power off and back on (or use Restart) so the new settings take effect.

6. Reconnect and test. Reconnect everything and check that the MoCA link lights are solid and your network works normally.

Tip: If one device is still on the old band, the link may not come up—double-check all adapters match D-band High and the same LOF values.