Powerline vs wireless

Using adjacent protectors will subvert data signals. But a superior protector solution also does not subvert those signals. Earthing only one 'whole house' protector provides superior protection for everything (even the furnace). Does not harm Ethernet over powerline signals. Has been the solution used even by X-10 controller users over a decade ago. X-10 controller signals were also subverted by the adjacent protectors. So X-10 users would often recommend a 'whole house' protector from Leviton. Other manufacturers of these superior devices include ABB, Siemens, Square D, General Electric, Intermatic, Keison, and Cutler-Hammer (Eaton).