Random ping spikes - would a powerline adapter help?

[ThePeanut]

For about a year I've been experiencing large latency spikes that would vary in magnitude and frequency. I've tried using an ethernet cable but the ping spikes would persist. I'm considering purchasing a powerline adapter, and would like to know if anyone has had the same issue and if the powerline adapters had any apparent effect. My internet provider is BT, I do have infinity, but the cabinet in my area is still using a copper infrastructure. Any help would be appreciated.

Thanks

 

[cedric249]

Unforunately, No.
The ethernet connection is far better than power line adapters.

High spikes are probably caused by congestion or the signal degradation going into the modem.
I had a similar issue a while back and my ISP came to fix it. The coax line was failing and had to be replaced.
The coax cable test went from -11DB to +4DB. No more 500+ms spikes

 

[ThePeanut]

Unforunately, No.
The ethernet connection is far better than power line adapters.

High spikes are probably caused by congestion or the signal degradation going into the modem.
I had a similar issue a while back and my ISP came to fix it. The coax line was failing and had to be replaced.
The coax cable test went from -11DB to +4DB. No more 500+ms spikes

I'll look into getting a new coaxial cable, thanks for helping!