Noise problems on internal wiring

Started by Tanzanite, Apr 12, 2007, 16:02:06

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Tanzanite

I'm still waiting for mine, should be 'live' today. I'm sat here waiting LOL

Rik

Don't hold your breath, Tanzy, BT screwed up on mine and I didn't make it until the following morning. :(
Rik
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This post reflects my own views, opinions and experience, not those of IDNet.

Tanzanite

Argh, nooo, don't tell me that!  :laugh: Still got 2 hours yet, so fingers crossed.

Rik

That's about what I was thinking on November 2.
Rik
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This post reflects my own views, opinions and experience, not those of IDNet.

Tanzanite

 :laugh: :laugh: :laugh: Knowing my luck it'll be this time next week  ::) and breathe...

Rik

It's worth a call to support, Tanzy, they can probably find out what's going on and start to apply pressure if needs be. I take it you're still connected to your old ISP OK? Have you tried the idnet login?
Rik
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This post reflects my own views, opinions and experience, not those of IDNet.

Tanzanite

Still on AOL at the mo, haven't tried connecting to Idnet yet, thought AOL would go dead and then I'd have to connect to Idnet?

DorsetBoy

 I was going to say, you could already be transferred ,BT seem to be leaving the old isp connected rather a lot recently.

Support will email when they know you are officially migrated.

Rik

As Dorset says, Tanzy, IDNet will tell you when they get told, but there's every chance you might find the IDNet login is working, and that BT just haven't thrown the SSB switch yet - worth a try.

If you're coming in from AOL, your MTU is probably set at 1400, you need to reset that and RWIN. Ask if you need advice.

Rik
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This post reflects my own views, opinions and experience, not those of IDNet.

Tanzanite

Woohoo! I'm now connected  ;D ;D ;D I tried connecting but no joy, so I tried reconnecting to AOL but couldn't connect to that either then all of a the sudden Idnet connection worked.

Yep, just about to do the MTU etc.

Dances off...

Rik

I'm glad it's happened for you, Tanzy. Welcome to happy land. :)
Rik
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This post reflects my own views, opinions and experience, not those of IDNet.

Inactive

Welcome Tanzy, glad it all worked OK for you.
Anything and everything that I post on here is purely my opinion, it ain't going to change the world, you are under no obligation to agree with me, it is purely my expressed opinion.

Tanzanite

Ty.

I've changed the MTU to 1458 which tcp optimizer said it should be. I'm still getting terrible speeds which are swinging about constantly from about 9960kbs to 2.54mb. I used to get almost 5mb when I first went on MAX with AOL (only had that speed for a few weeks though) Puzzled now. I changed my filters last week to the recommended ones, can't remember what they are, I know they have a X in there somewhere LOL

I know my line supports up to 5mb.

Rik

Hi Tanzy

You're probably talking about ADSL Nation's xf-1e? I recommend them above anything else I've used.

What did you set RWIN to (and what is the MTU on your router, 1500 is best)? I'd suggest a value of 65228.

Can you get a BT speed test, that will tell us what your profile is doing.
Rik
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This post reflects my own views, opinions and experience, not those of IDNet.

Tanzanite

#14
Yep ADSL Nation ones.

Ok, MTU is 1500 on the router, MTU on laptop 1458. I set the RWIN to what you recommended as I find it harder to get my head around than the MTU!

BT speed test:

IP profile for your line is - 2000 kbps
    DSL connection rate: 448 kbps(UP-STREAM)  3584 kbps(DOWN-STREAM)
    Actual IP throughput achieved during the test was - 1866 kbps


Router stats:

Statistics Downstream Upstream 
Line Rate 3584 Kbps 448 Kbps 
Noise Margin 16.1 dB 20.0 dB 
Line Attenuation 42.0 dB 21.0 dB 
Output Power 18.4 dBm 12.1 dBm 
 
Funnily enough and it can't be coincidence, that problem I had playing java games is gone, it still wasn't working earlier today but since switching to Idnet, I can play again  ;D

Rik

OK, you may have to show some patience for a few days, Tanzy. Your profile is not reflecting your connection speed, and should be up at 3000. Your noise margin is also high, so if it's still the same tomorrow, try re-booting the router and, if that doesn't lower the margin, have a word with support - it may be that BT have set it high.

Remember not to re-connect more than nine times an hour, 10 or more re-syncs will kick DLM into life on your line and trigger a downward movement in your profile. For a 42db attenuation line, you should definitely get a higher speed unless there's a lot of noise around.
Rik
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This post reflects my own views, opinions and experience, not those of IDNet.

Tanzanite

I did wonder whether I'd need to wait a few days.
If still no better by Mon will contact Idnet.

I turned my sky+ box off and noticed the noise on the line went down by 1db. I have an a/c unit on the wall near the router too but I turned that off and the noise didn't go down.

Just have to wait and see how it goes over next few days. Just grateful I can get all this help from you all and good customer service from Idnet! Thank you.

By the way, how long did you hold out on the choccie?!  :)

Rik

Hi Tanzy

In theory, a migration should just bring your profile with it, so I would speak to support tomorrow if things haven't changed. Sky boxes are notorious for ADSL issues, btw, if you don't need it connected, don't connect it. If you do, try two filters in series.

We're glad to help if we can, it's what the forum is about. :)

As to the chocolate, about 2 hours, but only because lunch was in the middle. :laugh:
Rik
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This post reflects my own views, opinions and experience, not those of IDNet.

Tanzanite

Further to my speed problem: Miriram told me to try a few things but have had no joy. Going to try one more router but if not, BT will be making a call out.

Weirdly though, my router stats this morning are:
Statistics Downstream Upstream 
Line Rate 3392 Kbps 448 Kbps 
Noise Margin 16.4 dB 21.0 dB 
Line Attenuation 15.5 dB 21.0 dB 
Output Power 18.6 dBm 12.1 dBm


Why has my line attenuation gone way down to 15.5 when it was 43 yesterday and every day before that? What does it mean?

I'm also getting tons of disconnects. One happened just now when my phone rang. But I've tried it without the phone and it keeps happening anyway.

Rik

Hi Tanzy

Those figures don't make a lot of sense, if that attenuation were correct, you should be synching at a much higher speed. It may be as simple as the router mis-reporting, but, tbh, I don't know.

If you are getting disconnects when the phone rings, I would suggest trying another filter and also connecting at the test socket if you have an NTE5 master socket. Take a look at this for detailed instructions.
Rik
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This post reflects my own views, opinions and experience, not those of IDNet.

Tanzanite

I've tried 3 different types of filters. The best one is one which has 3 slots, one for a modem, and 2 seperate ones for 2 phones/sky etc the ADSL nation ones didn't make a difference but this one with 3 slots plus surge protection seems to help slightly.

I've tried taking everything out and turning electrical stuff off and just using the router on main socket, still no joy. Just got an old router to try in main socket after that I have no idea apart from BT taking a look, just obviously worried they sting me with a call out charge when they say it's my fault lol.

My sync speed used to be in the region of 5880-6550kbps when I first went on MAX so I know it's capable of getting there.

The disconnects are getting worse, had 2 so far today. Does it sound like a faulty line?

Rik

Hi Tanzy

When you say the main socket, do you mean the master, or the test socket (if you have an NTE5). The difference with the test socket is critical as that automatically disconnects your internal wiring and removes that from the equation. If you still have a problem at the test socket, then it's probably a line fault, but if you are using the master, then it could be down to your internal wiring.

If it is your wiring, you will get a bill from BT, so it's essential to try and eliminate it before calling them out (via IDNet).
Rik
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This post reflects my own views, opinions and experience, not those of IDNet.

Tanzanite

Hiya,

Master socket, I mean, sorry. Not sure if it is a test socket or not yet. It's downstairs, and I'm upstairs and I'm chronically ill so can't manage it myself, very limited in what I can do, so will have to get someone else to try that.

Rik

Hi Tanzy

If no-one unscrewed anything, then it would have been the master socket not the test socket. That would mean your internal phone wiring was 'in play' and could be picking up noise. Ideally, you want to eliminate that possibility before getting BT in, as the charge is quite steep these days for fixing internal wiring issues.

Do you have anyone around you who could make the test for you?
Rik
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This post reflects my own views, opinions and experience, not those of IDNet.

Tanzanite

#24
I have someone who can do it but it'll probably be the weekend. Just be nice to get it all sorted!

By the way on the advanced tab on network connections there's a throughput enhancement thing, it was on disabled so I changed it to enable and speed was slightly faster. That's ok to do isn't it?