Wondering If I Could Get Faster Upload

Hey there,

I've recently moved into a house where I ripped out all the old/dodgy phone extension cords around the house and put in a new master socket.
I don't have a screen shot of old VDSL line stats - but things have improved drastically in terms of errors and other counters.
I did all this during the 10 days training period, so not sure if that might have messed things up?

My issue is that line stats & download speeds are good but upload seems to be stuck at 7 mbps.

55 down - 7 up.

Should I ask my ISP (Vodafone) to do anything on their end?

Are my stats good enough that I should expect better upload, or is 7 the best I could hope for?


I don't have a screenshot, but I do remember at my flat (where we moved from) I got about 14 mbps upload, and I had a ton more errors etc on the line...not sure if that's meaningful.

Screenshots here of my stats etc - also I notice BT wholesale figures don't match up with what I'm getting - i.e. my download is faster than what BT things I can get...perhaps it's updated very few weeks and hasn't taken into account my new master socket and better wiring?

https://imgur.com/OlL1g4U

https://imgur.com/DJvclQR

https://imgur.com/7DlCdwp

https://imgur.com/diRrHYw

10 training period is a myth on VDSL2

Lines will vary over the whole life time, with options switching on/off that may improve or decrease speeds depending on how things have behaved over a number of weeks.

The upload might not improve, different locations will have have power profiles possibly and noise sources affecting things. So it is sit back and wait to see what happens.

7 Mbps upload with 55 Mbps sync is an outlier but only just outside their estimated range. Remember the BT wholesale checker does nothing to limit your speeds in anyway.

Thanks for the response - I didn't know about training period being a myth on VDSL2... you learn something new every day!

So it seems just wait and hope is all I can do?

In reply to a post by MrSaffron:

10 training period is a myth on VDSL2

Agreed, that is to get a standard 6dB SNR/margin. However there is an ongoing training period that allows the drop to 5dB, 4dB and finally 3dB.

Pretty much, if you were plugging/unplugging a lot it will be a few weeks of stable lower errors being recorded before anything happens.

Thank you very much for the help on that - is this because the equipment in the cab constantly assess and makes changes, but very slowly?

The cabinet reports back error stats and a central system with various rules makes the assessment automatically whether to apply G.INP, change interleaving depth, lower or raise target noise margin.

This is done by looking at long term trends.

The cabinet simply syncs the modem up according to the rules this remote system has set, the biggest one being whether your line is a 40/10, 55/10 or 80/20 product.

Your Upstream is at the default 6dB SNRM (noise margin).

The upstream has no more to give and there's nothing DLM can do to improve it.

In reply to a post by MrSaffron:

The cabinet reports back error stats and a central system with various rules makes the assessment automatically whether to apply G.INP, change interleaving depth, lower or raise target noise margin.

This is done by looking at long term trends.

The cabinet simply syncs the modem up according to the rules this remote system has set, the biggest one being whether your line is a 40/10, 55/10 or 80/20 product.

What upload and download speeds would one get with a similar line if one had an 80/20 product?

Looking at the maximum rates shown in https://imgur.com/7DlCdwp - very little more!