BT speed reduction

Supatramp

Deleted_User said:

Supatramp said:

Deleted_User said:

Supatramp said:

iniltous said:

There is some info needed before anyone could reasonably be offer an opinion, post the return from this wholesale checker using your phone number ( this will show the predicted speed for your location ) and post your router statistics, this will show your max attainable speed and your current sync speed, this will allow us to see what your line is doing and what it could do 

https://www.broadbandchecker.btwholesale.com/

You may  have to look up how to get to your router stat pages

I can't copy from that link, won't allow me.

Just type the vital numbers then, nobody can help without that info.

What are the vital numbers?

There are 6 numbers for VDSL download - clean and impacted with high and low along with the downstream hand back threshold..

As per below - no problems copying from the website:

Still can't copy and paste, right clicking does nothing.

However, A gives 80/65, B gives 80/62.5.

Supatramp

The upstream speed is as it was before OR came out, and perfectly ok at 18/19, it's the downstream that's still showing at 52/53, as distinct from 66-70 before.

[Deleted User]

Supatramp said:

The upstream speed is as it was before OR came out, and perfectly ok at 18/19, it's the downstream that's still showing at 52/53, as distinct from 66-70 before.

That sounds like interleaving to me. DLM increases the downstream SNR to prevent disconnections/reboots. Once the system is satisfied that the error rate is acceptable it will lower the downstream SNR which is accompanied by an increase of downstream speed. You must allow the system to do its own thing: frequent router reboots are seen as line errors. 

Supatramp

[Deleted User] said:

Supatramp said:

The upstream speed is as it was before OR came out, and perfectly ok at 18/19, it's the downstream that's still showing at 52/53, as distinct from 66-70 before.

That sounds like interleaving to me. DLM increases the downstream SNR to prevent disconnections/reboots. Once the system is satisfied that the error rate is acceptable it will lower the downstream SNR which is accompanied by an increase of downstream speed. You must allow the system to do its own thing: frequent router reboots are seen as line errors. 

I've never had to reboot the router since OR came out and supposedly rectified the fault.  The connection hasn't dropped since, but the downstream isn't as it was.

Supatramp

Still getting only around 52 downstream, is it worth getting onto BT again?  Especially as they say I'm only a guaranteed 49?

iniltous

You still haven’t really provided much in the way of useful information, access the router statistics and post the results, the max attainable and connection rate are required but posting the entire thing is best 
If your line was banded because of a fault , and the fault fixed , it can take a while for the line to get back to where it was , if there is an indication that the line is still faulty , then DLM ( dynamic line management ) may reduce speed .
There are some things you are responsible for , like if you run the router from an extension socket rather that the master socket , or even if you use the master socket but have extension sockets connected that are affecting the broadband, if you don’t already , you should connect your router into the master socket test port , and check the router stats when connected here , this eliminates any ‘internal’ issues , like extension wiring and sockets , even if they have nothing plugged in , they can still affect the ‘line’ .

Supatramp

iniltous said:

There is some info needed before anyone could reasonably be offer an opinion, post the return from this wholesale checker using your phone number ( this will show the predicted speed for your location ) and post your router statistics, this will show your max attainable speed and your current sync speed, this will allow us to see what your line is doing and what it could do 

https://www.broadbandchecker.btwholesale.com/

You may  have to look up how to get to your router stat pages

I still can't copy and paste as you've asked, I can highlight, but right clicking does nothing.  I've even tried Chrome browser, but still the same,

But here's the figures you requested;  80/65.2   20/19   59.5   Available   Available   -

                                                             80/62      20/19   55      Available   Available   -

The bottom line is, that I've done nothing to the router, other than switcherd it off then back on again before reporting the fault, and before I was getting a downstream of anything between 66 and 70.  The upstream is the same as before, 18/19, so it's not the problem, it's the downstream which is only 51/52.

iniltous

Its not disputed that your lines performance isn’t what it was, what is unknown is why, as already stated  it could be due to instability your line was banded , and even if the source of the instability is removed , banding can take time to be automatically removed and the normal speed restored , or it could be a line condition ( that still exists ) has caused DLM to reduce line rate ( speed ) to compensate for the line fault , these are similar but not the same issues.
Router statistics have not been quoted by yourself , they are not the same as the predicted speed that your line should deliver based on a clean or an impacted lines , quoted as a range range , low and high …the router stats show the reality of how your line is connected , not an estimate.
You can do a simple search or view a self help video , ‘how do I access my home hub statistics’ to get access to this info