BT have messed up my broadband connection, is there anything I can do?
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Re: BT have messed up my broadband connection, is there anything I can do?
10-10-2012 5:34 PM
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Quote from: Anotherone I wouldn't swap it over without knowing what the current SNRM is and it needs to be stable at 6 or above with no spikes!
I was thinking that myself. That means that I cannot really do anything until the training is over. In fact even if the SNRM were good it would be risky to plug in an unknown modem during the training in case it is not as good as the one I am currently using. Is there any way I can tell when the training is complete?
Re: BT have messed up my broadband connection, is there anything I can do?
10-10-2012 5:50 PM
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I'll reply to your 2nd PM.
Re: BT have messed up my broadband connection, is there anything I can do?
11-10-2012 10:06 AM
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Re: BT have messed up my broadband connection, is there anything I can do?
11-10-2012 12:43 PM
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Re: BT have messed up my broadband connection, is there anything I can do?
11-10-2012 9:48 PM
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Re: BT have messed up my broadband connection, is there anything I can do?
11-10-2012 10:17 PM
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28/11/06 2240
29/11/06 2272
30/11/06 2304
01/12/06 2336
02/12/06 2240
04/12/06 2336
05/12/06 2368
I had forgotten that it used to be that fast.
Re: BT have messed up my broadband connection, is there anything I can do?
11-10-2012 10:33 PM
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"In The Beginning Was The Word, And The Word Was Aardvark."
Re: BT have messed up my broadband connection, is there anything I can do?
11-10-2012 11:25 PM
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Some potential noise sources to try and eliminate. Set RouterStats running, leave it going a bit to see what sort of level it's at, then switch off your monitor and if separate, its power supply. Leave it like that a while then switch on again and see if there was any step changes to the noise levels.
Do you have a second computer, if not could you get a friend with a laptop to visit? Put Routerstats (Lite would do) on it. First with only your computer on, run Routerstats and look at the noise level. Then turn yours off and unplug it from the mains. Run the other computer and Routerstats and see if there's any significant difference. You may have to do this check in daytime when the noise levels are more stable, as you are no doubt aware the noise levels after dark can change quite wildly at times.
Reason for the checks - switched mode power supplies can turn noisey and generate a load of trash.
Other thinks to think about are an assortment of wireless devices, fluorescent lights, compact fluorescents, low voltage halogen using switch mode supplies, even LED lights. Boilers starting up, arcing thermostats, motorised things such as washing machines, vacuum cleaners, drills and so on.
Well, a good job that you've got those speed notes Colin. Re the ferrite, try it on the modem/router line (close to the back of it) and worth a go on it's mains lead as well.
As regards when to swap to the v4, maybe wait until your twisted pair screened modem cable arrives, subject to SNRM conditions at the time.
Re: BT have messed up my broadband connection, is there anything I can do?
12-10-2012 9:32 PM
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I have seen a couple of odd effects this evening, the SNRM on the graph drops to zero briefly, but when I look in the sample log I see stuff like
Fri 12 Oct 2012 20:47:52,
Fri 12 Oct 2012 20:47:54, Rx-Noise=0.0, Tx-Noise=0.0, Rx-Sync=, Tx-Sync=,,
Am I right in thinking these are software glitches?
It is a bit noisier this evening, see SNRM graph 2122. The spikes down to zero all appear to be corrupted data, but the one down to 3.8 is real I think.
Am I right in thinking that these noise levels are now perfectly acceptable?
Re: BT have messed up my broadband connection, is there anything I can do?
13-10-2012 10:00 AM
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Re: BT have messed up my broadband connection, is there anything I can do?
13-10-2012 12:34 PM
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Mine did due to concurrently running inSSIDer
Re: BT have messed up my broadband connection, is there anything I can do?
13-10-2012 1:45 PM
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Fri 12 Oct 2012 19:06:57, Rx-Noise=6.4, Tx-Noise=15.0, Rx-Sync=1184, Tx-Sync=448,
Fri 12 Oct 2012 19:07:20, Rx-Noise=0.0, Tx-Noise=4.0, Rx-Sync=3, Tx-Sync=4.0,
Fri 12 Oct 2012 19:07:22, Rx-Noise=6.4, Tx-Noise=15.0, Rx-Sync=1184, Tx-Sync=448,
This cannot be real data as there is no way the rx and tx speeds could change from 1184, 448 to 3, 4 and then back in this way.
dick:quote
Re: BT have messed up my broadband connection, is there anything I can do?
13-10-2012 5:11 PM
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Ok lets deal with a fallacy or two, you can't rely on the colour of the line changing to red all this indicates is that the particular plot has gone outside the alarm limits that you have set and there is also the possibility that you may be confused with the fuchsia plot of the average if set up.
I would recommend plotting the average noise margin, but nothing else - totally meaningless for WCB ADSL/ADSL2+.
Reed is correct, but it may not be just the router not responding is may also be the RouterStats program's request or data returned to it, not arriving in a timely manner. This is all dependant on how busy the modem/router or your computer's CPU/HDD is at a given instant. There is a check box setting on the >Configuration >Graphs >Common Settings tab to "Pause graphs when router doesn't respond" but this does only deal with the Modem/router. It may be possible to deal with the CPU/HDD busy situation by raising the priority of the RouterStats task in Task Manager, but as I don't suffer from it very often (and usually not in critical circumstances) I keep forgetting to try it on more occasions.
The rule is, if you get a drop to zero on all graphs and no change in sync speed or margin after the event, it was probably a glitch. It is possible, though not common, to lose sync and resync at exactly the same speed, but remember a resync usually takes around 30 seconds.
As you say, the first drop in the Graph in reply #83 "looks" different, and I wondered whether it was a real spike due to interference, which it seems it wasn't when looking at the log which is why that, and comparison with other graphs you are plotting should be done before making an interpretation. The one to 3.8 does look real. There was static about yesterday, did you hear any thunder at all (you won't always)?
What's the SNRM doing today?
Looking at the remaining graphs in reply #83 there could have been a noise burst from something just at sync as the bit loading is well down over tones 53-70 ish and hence the lower sync speed.
I'd suggest a daylight resync when the SNRM is a nice steady value +/-0.25 at most, preferably +/-0.1 and higher than 6.5, preferably nearer that 7.5 you mentioned.
Re: BT have messed up my broadband connection, is there anything I can do?
13-10-2012 8:47 PM
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I don't think the 3.8 spike yesterday was lightning, the weather was quiet at that time. It might have been when I switched the dishwasher on, though that is at the other end of the house. Now that the basic signal is much smoother I may be able to tie down the other events. Though as long as they only knock a couple of dB off they are probably nothing to worry about too much are they? As long as they are rare enough that I don't get two at the same time that is.
Although the new router came up at 7.5dB it has not achieved that value again since. It drifted down throughout yesterday morning and today it has been hovering around 6.5 with no noticeable large spikes so I don't there is much to be gained by re-syncing at the moment.
Re: BT have messed up my broadband connection, is there anything I can do?
13-10-2012 9:54 PM
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