FTTC Download Speed

[PUDtheAncient]

I have just had fibre installed yesterday and am currently getting a download speed of about 42mbs and upload of about 15mbs, speed was 50-60mbs for most of yesterday but I realise this will fluctuate for a few days while it settles down. I am hoping it will go up again in a few days.

I was previously getting about 6.5mbs down before the fibre and a 1gb file used to take about 20 mins to download on my PS4 or Xbox One. Now it's taking about 10 mins but with the speed I have it should only be taking 3-4 mins by my calculations.

Everything is wired with good quality shielded cat 6a cable and gigabit switches, router is a brand new Asus RT-AC68U. Cable from router to modem is only 0.5m and same quality, modem is less than a meter from the master socket.

Can anyone explain this please?

[Glenn]

What speed is the router connecting at, assuming it shows the connection speed?

[Steve]

It also depends at what rate the server that you are connecting to will supply at especially when busy. The BT speedtester I've found to be a good indicator of throughput lately.

[PUDtheAncient]

The last speed test on the Bt tester gave about 43mbs. I am not sure what speed the router is connecting to the modem, I don't think it tells me. I am connected from the Ethernet on the modem to the wan port on the router.

[colirv]

I don't know how many BT speed testers there are, but this one will give your IP profile, amongst other things. My preferred general speed test is Speedtest.net. As Steve says, the download speed from a site is dependent on the speed that site can deliver, which can be a fraction of your max. capability.

[Gary]

I have just had fibre installed yesterday and am currently getting a download speed of about 42mbs and upload of about 15mbs, speed was 50-60mbs for most of yesterday but I realise this will fluctuate for a few days while it settles down. I am hoping it will go up again in a few days.

The speed you have now is probably the speed you are going to get tbh. FTTC only really takes two days to work out your line speed, the 10 day period is a myth now. On day one the DLM lets the line run at full speed, if there is instability caused by line errors it will kick in to stabilise the line, otherwise it will wait till day two to do its magic. So the speed you have now is probably the best you will get as long as you cabling etc is good, and it may go down due to crosstalk as well.

"DLM constantly manages lines to maintain a target stability. It does this for as long as the product exists.

At provision, the line is put on wide open profiles, allowing downstream line speeds
of up to 40Mbit/s, and upstream line speeds of up to 2Mbit/s or 10Mbit/s depending
on the upstream product option selected.

On the first day of operation, DLM will intervene if severe instability is detected.
Otherwise, DLM will wait until the day after provision before intervening, provided
that the line has been trained up for at least 15 minutes during the preceding day.
If DLM intervenes it will set a capped profile with a maximum rate and a minimum
rate, where the minimum rate is set at approximately half of the maximum rate. The
purpose of the minimum rate is to ensure that the line does not train at a rate which is
significantly below the level the line should be able to achieve. If this happened, then
the line is likely to remain at a very low rate till a re-train is forced by the user
powering off the Active NTE."

http://forums.thinkbroadband.com/fibre/3956973-fttc-10-day-training.html?fpart=all