Please help me to understand

Hi Everyone,
I have an Asus DSL-N16 WiFi Modem in my study. I'm also trying to set up a Trendnet TPL-410 APK Powerline 500 Wireless kit.
I believe I have this set up correctly but when I connect from my phone to Trendnet WiFi I'm only getting about a 10mb download and its about the same when I join the Asus WiFi.
However when I do a speed test from my computer using ethernet connection I get about 22mb!
Can someone explain why there is such a difference between the ethernet & WiFi?
Many thanks

hi, see section 9 in the https://www.duckware.com/tech/wifi-in-the-us.html web site. check you are using a none overlapping channel (1-6-11) and using a channel not used by your neighbours. You can also set one of the routers to use channel 1 and the other channel 6 so they are also not overlapping.

Both the ASUS DSL Router and the Trendnet Powerline kit are 802.11b/g/n
so 2.4GHz only and no .a/.ac nor later
as well as being 10/100Mbps ports (no gigabit).

Indeed that Powerline kit model is marked as discontinued on Trendnet.

Branded as "300" that can only do 2 spatial streams anyway but
a phone might only support a single spatial stream.
I would not expect more than 40-50Mbps in that case, even in favourable conditions.

While I'd still expect the powerline part to be the limiting factor,
I've not seen mentioned what the maximum download / upload just for your DSL happens to be.

To eliminate the Internet/DSL as a factor you'd have to be using something like iPerf to test between 2 computers,
but you'd likely be able to saturate the links with some simple file copying, timing for known sizes if that is easier.
This is because most disk storage can easily manage 15MB/s, even USB sticks these days.
Check in each direction too.

Edited by prlzx (Sat 17-Jul-21 23:42:34)

In reply to a post by Piscatorian:

However when I do a speed test from my computer using ethernet connection I get about 22mb!

As said, could you confirm your raw FTTC connection stats? Would help very much to put the LAN speed figures into context.

You see 22 Mbps on its own isn’t spectacular but if the service is only capable of 23 Mbps then that’s suddenly not as bad as if your connection was capable of 60 Mbps for argument sake.