Hello everyone,
first I hope this is not too off-topic. I'm asking here because this whole layer-1 world is quite foreign to me, despite having studied electronics 30 years ago, and I have noticed some people here really know what this is all about :-)
In short : my house is cabled over ADSL (aerial line). The upgrade to G.Fast is planned for July, most probably still over the aerial line. I had serious connectivity issues when it was raining, and had Swisscom/Cablex replace my aerial line (aluminium+paper, 40+ years old) by a new shiny big shielded cable, along with all the internal cabling well-done, direct cabling for the U72, new sockets and cables, etc.
The current "should" speed numbers from Swisscom check-tool are :
Download : 50 Mbit/s au max. au lieu de 200 Mbit/s Upload : 18 Mbit/s au max. au lieu de 100 Mbit/s
However, when testing my speed, I consistently find DL at 18-19 Mbis/s and UL at 25-29 Mb/s, with a latency at about 12ms.
I have done the tests with my "real" environment (ADSL bridged-modem, Unifi USG, etc) and as well with the modem in "home-office" mode, eg ADSL-router doing the PPPoE by itself, the numbers are very similar. I used several test-sites and clients, wired and not. Almost always the same numbers.
Now I'm not sure why my UL is faster than my DL. After helping to have my line replaced, my provider (Solnet) said all is ok and the problem is elsewhere... but where ? Why is UL faster than DL, and why not the 50mb/s they say ?
And will it really be better with g.fast, or should I go to UPC, which I'd rather not have to....
Hints welcome :-) Charles