@Nahemoth Won't lie I'm not sure what the best filters would be so going to tag a member of the tp-link staff who might know. @David-TP

@Nahemoth Shielded Ethernet cable provides superior protection against electromagnetic interference (EMI) and noise but is more expensive, thicker, less flexible, and requires proper grounding,...

@David-TP

@Dcap If any of you have any issues with the new BE75 beta firmware please only post them in this thread https://community.tp-link.com/en/home/forum/topic/840142

@Stekin Can you please provide the firmware verson of your deco units? You can find the firmware version by opening the deco app and clicking on More > System

@Nahemoth To reduce noise in a PLC network, implement best practices like proper grounding and shielded cables, strategically route wires away from electrical noise sources, use twisted pair cables...