Connection Issue - Interference?

[Steve]

Certainly removing the bell wire reduces the interference induced into the adsl signal , I was looking a your stats posted earlier when you had a sync of 3008, somethings changed somewhere, can you carry on with routerstats overnight with the router plugged into the test socket with a fresh filter if you've got one.

[Swerv]

That sync speed was last night though Steve.  The connection has been out completely until late in the evening.  On that basis do you think that the sync speed could jump this evening?

Apologies if I'm being thick here, but is/can the sync speed be affected by interference?

I'll run the stats this evening again, certainly.  I've got Telnet running at the mo as well.  WRT to the Telnet stats, why would the upstream attenuation be double that reported on the router stats (28 vs 14)?

[Swerv]

Minor update:

Downstream NM has rocketed to 21db 

[Steve]

If it stays at 21db I suspect you've been placed on a banded profile although the sync you posted i.e 672 is not typical of an upper band limit, if routerstats is showing a constant nm of 21 I'd be tempted to try a resync as you've now got plenty of excess margin if the interference has now gone.

[Swerv]

Err, wow.  Just rebooted and:

ADSL Link    Downstream    Upstream
Connection Speed    4352 kbps    864 kbps
Line Attenuation    47 db    14.5 db
Noise Margin    5 db    11 db

[Simon]

That's some improvement! 

[Swerv]

A few graphs for everyones' delectation. 

[Rik]

Well it wasn't connecting at all until I removed the bell wire.  So can removing the wire have reduced the susceptibility to interference enough such that it is now able to connect but just not at a decent speed?

It can, but I'd check that you haven't loosened there wires on terminals 2/5 to be on the safe side.

[Rik]

A few graphs for everyones' delectation. 

I'd be inclined to try a 2-Wire 2700 router looking at that, <£20 delivered from eBay. Are all three graphs after the ringwire was disconnected?

[Steve]

Certainly seems to settle down around daybreak.

[Rik]

Which rules out the treadmill.

[Swerv]

Rik, all 3 graphs are from after removing the bell wire, yes.  

The graphs are taken from pretty much when I rebooted the router, following Steve's suggestion after I noticed the NM rocket.

I'll take a look at the router you mentioned.

[Rik]

Keep us posted.

[Swerv]

As an aside, is there any benefit to having an NTE5 fitted btw?  Or does the cost to get BT out to do it negate its worth?

Ooh, I just remembered, we have a couple of BT Homehub things lying around the office not being used....

[Rik]

There is, and it's often quite cheap to get BT to fit one, around £30. The problem is finding a sales rep who knows that.

[Swerv]

I have acquired a 2700.  Don't know firmware yet, but it's a dual SSID jobbie.  Can someone point me in the right direction as to where to go with this?  I've found various sites, but could do with one which runs from start to finish as to what I need to do.

[Simon]

Might be worth starting here:

http://www.idnetters.co.uk/forums/index.php?topic=8927.0

[Swerv]

Thanks Simon.

[Ted]

Or here. http://bt2700hgv.tripod.com/ir1002700HGV.htm

[Swerv]

Ok guys.  Got home and thought I'd check the stats.  Before doing so I setup the security on it.  It had been running without, as the Mrs' company laptop refused to connect.  She's since had a better WLAN utility installed by her IT team, in place of the bobbins Windows one.

Anyhoo, MAC filtering on and WPA-PSK.  These are the current stats:

ADSL Link    Downstream    Upstream
Connection Speed    3456 kbps    64 kbps
Line Attenuation    47 db    14 db
Noise Margin    8 db    8 db

Downstream NM is still all over the place.

So why on earth has the upstream sync plummeted? 

[Steve]

Is it  being reported correctly? Browsing won't be easy with such a poor upstream. The upstream tends to be less affected by noise as the frequencies used are lower. Any noise on the phone line, any broadband drops on phone calls? Have got another adsl filter to try?

[Swerv]

It's taking a while to load pages.  e.g. a good 10s to load all the smileys and icons that are present on the reply console on here.

But tested phone and no noise on the line, no broadband drops.

[Steve]

I think I'd see what support have to say tomorrow,

[Swerv]

Yep.  Will do Steve.  Just done a reboot and:

ADSL Link    Downstream    Upstream
Connection Speed    4224 kbps    864 kbps
Line Attenuation    47 db    14 db
Noise Margin    7 db    11 db

Frustrating.

[Steve]

It is as that looks fine, although when dealing with support (especially when faults are suspected), supporting BT speedtests are very helpful to them.