Hello again,

I have installed and run the Powerline utility. While connected to one of the PLCs, it shows that the theoretical rate between them is 109Mbps (screenshot below). However, I don't get more than 34 through the internet link. Again, if I connect my laptop directly to the router I get nearly 100Mbps.

Powerline utility screenshot:




Speedtest using PLC:




Speedtest direct router connection:




Any ideas as to why if the theoretical rate is more than 100Mbps I only get 30% of that?

Thanks,

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JG.

You have misunderstood ethernet speed with powerline speed.
The speed from speedtest is ethernet speed, and the speed you have seen from utility is powerline speed.

100Mbps powerline speed is like 50Mbps ethernet speed.
In addition, powerline speed will be affected by electric noise in the powerline. So it is not stable as ethernet speed.

Hello Vincent,

Thanks for the clarification. So for my own clarity: Powerline speed (e.g. 200Mbps as advertised in the product) needs to be halved to get an idea of the max theoretical ethernet throughput, right?

And then, once plugged in, depending on the wiring condition, noise, etc, that powerline speed goes down.

So, the fact that I can only reach 109Mbps powerline speed / 34Mbps ethernet speed is considered normal? Again, both devices being in the same room, separated around 5 meters linear distance -- opposite wall -- (no idea of the real wiring length but should not be huge IMHO). Electrical installation is around 15 years old.

Basically the question is whether I should consider this throughput as normal, or whether one could think the devices could be faulty under these conditions.

When placed side-by-side, ethernet throughput didn't go higher than 60Mbps (120Mbps powerline throughput, devices separated a few inches from each other, connected to the same power strip).

What is your/the_forum's opinion?

Thanks!

--
JG.

Yes, the throughput test result is completely normal.
So don't worry about it.