How do I troubleshoot issues with signal loss over long coaxial runs?

For signal loss over long coax runs:  

1. Ensure total length doesn’t exceed 300 feet (MoCA 2.5’s maximum range). 
2. Check and reduce splitter count, as each causes 5-7 dB signal loss. 
3. Use high-quality RG6 coax to replace old lines. 
4. If needed, add a MoCA-compatible amplifier.
5. Check the MoCA link rate in the device’s WEB GUI.