Effect of updating firmware on TG582n - purely out of interest
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Effect of updating firmware on TG582n - purely out of interest
08-11-2014 12:04 PM
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Previously after a night where the noise margin dropped to about 2.9dB the tones above about 190 would drop out permanently with the reported noise margin during the day settling at about 3.5dB but with the new firmware they either don't drop or they recover as shown in the attached picture and during the day the reported noise margin climbs back to about 6dB from a low of about 4dB
Note that speeds are about the same
Re: Effect of updating firmware on TG582n - purely out of interest
25-11-2014 12:37 PM
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My connection is much more stable but I have noticed an interesting effect
The minimum noise margin is between 7,00 and 8.00 in the evening and creeps up - this is only one night but the others show the same effect (the jump is when the computer is put into sleep mode over night)
Before you ask - there aren't any street lights
Edit Sleep mode clarified
Re: Effect of updating firmware on TG582n - purely out of interest
25-11-2014 1:15 PM
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The jump when you put the computer into sleep mode might indicate an issue with the PSU. However I think I recall on ratbag's thread that a screen caused a similar issue.
From personal experience I have found 10.2.2.B to deliver a substantial improvement in line stability, though an e-side trunk cable repair replacement might have also contributed. I had the firmware upgrade done in early July and around that time our under river e-side cable was damaged cutting many subscribers in the area off for 10 days. Post the service rectification, I have not had a single drop of xDSL since. Currently on 133 days.
SNRM varies by not more than 1dB around the 3dB mark.
HTH,
Kevin
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Re: Effect of updating firmware on TG582n - purely out of interest
25-11-2014 1:19 PM
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Nothing to do with interference
Re: Effect of updating firmware on TG582n - purely out of interest
25-11-2014 1:36 PM
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Sorry, I got the wrong end of the stick... I missed the step change in the x-axis time line.
Quote from: Oldjim (the jump is when the computer is put into sleep mode over night)
I read exactly as written, rather than more correctly as "when the computer came out of sleep mode some hours later". The interesting detail is that the SNRM was then 7dB rather than the solid 6dB previously.
Was there a resynch during the wee hours when you were not monitoring?
Kevin
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Re: Effect of updating firmware on TG582n - purely out of interest
25-11-2014 1:42 PM
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The steady 6 was unusual as previous days have all hit about 6.4
Possibly due to the very much colder weather that day
Re: Effect of updating firmware on TG582n - purely out of interest
25-11-2014 1:51 PM
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In another browser tab, login into the Plusnet user portal BEFORE clicking the fault & ticket links
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Re: Effect of updating firmware on TG582n - purely out of interest
25-11-2014 1:54 PM
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Re: Effect of updating firmware on TG582n - purely out of interest
25-11-2014 2:27 PM
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It won't be specifically due to cold weather, but weather patterns in the upper atmosphere do have a bearing.
MW propagation has been extremely variable over the last few weeks. I've noticed occasions where it been quite high fairly early in the evening and then there has been a gradual decrease - so the SNRM gets quite low and then gradually climbs up.
It can go up and down a lot during the night as well.
There has been minor variations in daytime propagation as well, and actually you can see slight differences between the 2 days on Jim's graph.
Also as there is no graphing between the start of sleep mode and the following A.M , jumping to possible conclusions about why it was 6.4 (not 7) compared to the previous day's 6.0, can be misleading.
Just for the record, as I haven't seen it mentioned of late, the 10.2. Firmware has better noise immunity. (I'll post a link if I find it).
IIRC correctly Jim, when you first asked me about it, I said if you aren't having any problems ....... you didn't mention about errors, or still having occasional drops if I recall.
Re: Effect of updating firmware on TG582n - purely out of interest
25-11-2014 2:33 PM
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That is those months where there wasn't a power cut or BT weren't playing about
I only upgraded to see what would happen and I have been pleasantly surprised. The improvement in bit swapping was really noticeable with the effect that the overnight noise margin has increased by about 1 - 1.5dB with the consequential reduction in CRC errors
Re: Effect of updating firmware on TG582n - purely out of interest
25-11-2014 2:46 PM
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Re: Effect of updating firmware on TG582n - purely out of interest
25-11-2014 2:49 PM
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As I noted in the other thread all was fine until some different usage began.
Re: Effect of updating firmware on TG582n - purely out of interest
26-11-2014 10:06 PM
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Re: Effect of updating firmware on TG582n - purely out of interest
26-11-2014 10:08 PM
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