Overnight drop outs
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- Re: Overnight drop outs
Overnight drop outs
05-09-2015 12:06 PM
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Re: Overnight drop outs
05-09-2015 12:36 PM
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A warm welcome to the forums. There is a multitude of causes for what you describe. You will find the speed issues thread (link below) useful for working through those things which cause connectivity issues. Can you please post the information requested.
Is the phone line noisy? Dial 17070 option 2.
Is the router connected to the master socket? Are there any extensions?
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Re: Overnight drop outs
05-09-2015 1:43 PM
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Noise margin: 6.3/3.6
Line attenuation: 31.9/59.5
Download 2.88 Upload 0.35
Current line speed: 2.9 Mb
The Quiet Line Test is fine. Router connected to master socket.
The line does drop occasionally during the day but quickly reconnects, but it seems to give up if it drops during the night!
Re: Overnight drop outs
05-09-2015 3:54 PM
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Do you have any electrical devices on a timer that might come on/off at around 9.30am?
Here's what your connection logs show us:
<img src="http://community.plus.net/visualradius/generated/image14414647508613.png"/>
Re: Overnight drop outs
06-09-2015 12:22 PM
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Regards
Re: Overnight drop outs
06-09-2015 12:45 PM
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Can you please post the full router stats?
The speed figures you've reported rather look like DATA speed figures and not the synch speed, which is where we need to look first. With those data speed figures, I suspect that the synch speed is way below what it should be or there is a very high error rate on the line.
Is the router connected directly to the master socket by just a filter?
Are there any phone extensions (regardless of them not being used)? If yes, exactly how are they wired?
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Superusers are not staff, but they do have a direct line of communication into the business in order to raise issues, concerns and feedback from the community.
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Re: Overnight drop outs
06-09-2015 3:55 PM
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The zdnet download speed at the moment is 2.6,
I'm about 3 miles from the exchange so don't expect a high speed. The router stats earlier this afternoon were(coudn't send as line dropped!, apparently for the second time today.) -
Firmware version:7.273.1_F2704N_Plusnet
Board version:F@ST2704N
ModeADSL
Uptime:0 days 02:17:18
Data rate:468/3869
Maximum data rate:816/4040
Noise margin:6.4/1.8
Line attenuation:31.9/60.0
Router connected to master socket through filter, no extensions.
Regards
Re: Overnight drop outs
06-09-2015 4:50 PM
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This looks a bit grim!
The synch speed is a bit higher than might be expected for a line of your attenuation (length) - 60dB would deliver circa 2.5-3.2Mbps at a SNRM of 6dB.
It looks like your line is set to run at 3dB (giving you a higher synch rate) but is apparently suffering from noise as the SNRM was only 1.8dB which is going to deliver a high error rate.
Is there any noise on the line? Dial 17070 option 2 using a corded phone in the master socket.
Have you tried changing the filter?
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Superusers are not staff, but they do have a direct line of communication into the business in order to raise issues, concerns and feedback from the community.
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Re: Overnight drop outs
08-09-2015 9:21 AM
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Kept an eye on the connection, the gas boiler and the timer this morning. There were no drop outs associated with electrical events but 20 minutes later at around 9.05 there were 2 drop outs but the router quickly reconnected.
A ZDnet speed test at 9.15 showed 2.74. I think your conclusion is probably right - although the silent test is fine the quality of the line cannot reliably support that speed and the setting needs adjusting and speed traded off for reliability.
Does this get picked up by Support or do I need to report it again?
Thanks for your help and insight.
Re: Overnight drop outs
08-09-2015 10:00 AM
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What is the target SNRM here please and what's the line's error history like?
Thanks.
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Re: Overnight drop outs
08-09-2015 10:34 AM
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Loop Loss: 60.0
SNR Margin: 6.4
Speed: 2960
Indicative Line Quality: A
Mean Time Between Errors Downstream (Seconds): 14
The mean time between errors hasn't been too bad until the last 2 days when it dropped from around 1500 down to where it is now. It's always been a bit spiky and has periods where it plummets to a low number though.
Re: Overnight drop outs
08-09-2015 10:50 AM
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Thanks - what would you recommend here? Follow fault reporting path? Reason for asking is with the synch rate so much higher than expected (for the reported attenuation), is a fault report likely to just result in speed exceeds expectations, therefore no grounds for reporting?
Kevin
Edited for clarity over expectation statement and to fix typos.
In another browser tab, login into the Plusnet user portal BEFORE clicking the fault & ticket links
Superusers are not staff, but they do have a direct line of communication into the business in order to raise issues, concerns and feedback from the community.
If this post helped, please click the Thumbs Up and if it fixed your issue, please click the This fixed my problem green button below.
Re: Overnight drop outs
08-09-2015 10:57 AM
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Re: Overnight drop outs
08-09-2015 3:08 PM
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I've received an email from support which says
Having tested your line today it appears the instability of the connection may be due to a setting being incorrect for the line. The signal to noise ratio (SNR) is too low for the length of your line. The SNR helps the broadband to remain stable and unaffected by noise or interference on the line. The higher the setting for SNR, the higher the level of noise can be tolerated. The SNR for your line was set too low for the amount of interference we'd expect to see, so by increasing this we expect the connection to now stabilize. Please monitor the connection over the next couple of days, and reply to this message should the connection continue to drop.
The adjustment has hopefully reduced the drop out problem and the ZDnet speed is down to 2.17. I must admit I'm still a little unclear whether the stats suggest there is an underlying problem with the line....
regards
Re: Overnight drop outs
08-09-2015 3:21 PM
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Quote from: forumtalker ModeADSL
Uptime:0 days 02:17:18
Data rate:468/3869
Maximum data rate:816/4040
Noise margin:6.4/1.8
Line attenuation:31.9/60.0
Even for a long line, that upstream speed is unusually low.
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