Intermittent WAN usage, too regular for errors.

[Mackey18]

Hi Mike - It sounds as though BT have been a bit mean when it comes to installing Fibre cabinets.

The DLM has other means of stabilising a connection and that is by increasing the Depth of Interleaving but you would have to Telnet into the router to find those stats - at least you do with the 7800N.

Basic levels should show Down 32 and 4 for Up and the Down can be incremented in 32s whereas the Up would go 4 - 8 -16 (I think).

This Kitz article gives you an explanation of the line stats you will see in Telnet and the example values for D (interleaver depth) shown of 1 /1 are when it is set to Fast Path although ISPs Interleave their connections for stability but if you have Latency problems when gaming, then your ISP will change this to Fast Path upon request which should improve them.

http://www.kitz.co.uk/adsl/linestats_explanation.htm

The rest of the Kitz article is also worth a read as you can learn a lot from it and while it's getting a bit dated now, it's still educational.

Telnet in Win 7 it isn't default enabled and that is done via Programs and Features/Turn Windows features on or off then scroll down and check the box for Telnet Client.

Then to use Telnet - go Start - type telnet 192.168.1.254 (think that's the Default Gateway for the 7800DXL) and press enter.

You'll get a black command window where you log in as you would your router but pressing enter each after admin and your password.

You then enter the cmd adsl info --stats and for any of the cmds you have to use the space and then those two dashes.

Type logout or quit and press enter to close Telnet.

Entering adsl ? should give you examples of other adsl cmds and I think ? on its own will give you the other categories but as it's been a while since I've used Telnet, they may not be exact but you should be able to find your way around after a bit of experimentation.

Tom.

It seems to show an interleaving depth in the stats of my 7800DXL and has a value of 32. I wonder what it was on the day the loop was changed... Hopefully still 32.

Is there any possible chance that you could try another router, as this looks like a fault to me. The line drops are too regular to be interference, in fact, does the line drop at all, as surely this would be in the system logs as a resync?

Nope the line doesn't drop at all, these are happening every few seconds and last a fraction of a second. That said I haven't experienced it as bad as in the photos for about 3 days now!

[Mackey18]

Ok still no luck with either issue. I left it for a week and then tried a couple of resyncs and I'm still not getting that 2dB back which is incredibly annoying. Event tried changing the filter, but nothing. Still noticing the intermittent issue when on Skype calls etc. and it's still very annoying.

One thing I did notice was that straight after a resync the "Attainable Rate (KBps)" value jumps up to around the value I had when on 75dB (not 77dB) but that's after it's synced and got the speed. If I try to resync, it does the same, low value followed by a jump up to something I'd expected.

Any ideas?

Mike