Kitz Forum
Broadband Related => Broadband Hardware => Topic started by: bigbossa on September 24, 2014, 11:47:21 AM
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Hi All
Got myself a Billion 7800N
seems only one port/device will connect to the internet ,thats my PC, the other three ie Home plug ,TV etc remain yellow
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sorry seems other devices are connected just that one of the LEDs (my PC) is green and all the others are yellow...is that normal?
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I havent got this router... but its standard practice on quite a lot of ethernet ports to show different colours depending upon the speed of the device plugged into it.
Green is usually GbE
Orange/Yellow is usually 10/100
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all working good ...any tips on tweaking the SNR . would my speed increase over time ?
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Not much point attempting to tweak the SNRm if you are on FTTC. The BToR DLM works slightly different to the BTw one on adsl2+
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Darn ! I did change the SNR in the hidden setting and its increased the speed a bit
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Oh... what changes did you make? Ive never actually tried as I know plenty before have and its not worked as you supposedly cant over-ride the default 6dB What were your before and after figures? Do you still have them
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I entered a figure of 50 in the hidden settings ...I think that should lower the SNR to 6db its now , didnt make a note of the previous but this what it was on the Netgear
DSP Firmware Version A2pB025f.d22k
DMT Status No Defect
Operational Mode G.DMT
Upstream 640
Downstream 3552
SNR Margin(Upstream) 9.0
SNR Margin(Downstream) 6.3
Line Attenuation(Upstream) 31.5
Line Attenuation(Downstream) 57.0
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ooh.. just realised from your stats that youre not on fttc, so any tweaking should still work.
afaik the tweaks for the Billion and Netgear should be similar
http://www.kitz.co.uk/routers/dg834GT_targetsnr.htm
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cheers Kitz will have a look and see how I go....BTW will the speed over time?
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The speed in theory should stay the same. It depends what the DLM does. Ive just noticed that you appear to be with Talktalk where its possible to ask them to turn off the DLM if you ask nicely in their support forums :)
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Hi Kitz
I have gone over to the talk Talk forum...seems that where you get things done and asked them nicely to turn off the DLM.
BTW dropped the connection earlier :(
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BTW dropped the connection earlier :(
??? If you have an LLU'd TalkTalk service then BTWholesale are not involved in any shape or form!
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Sorry mate meant by the way "BTW"
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Ah, so I misinterpreted the abbreviation! (b*cat goes to hide in another brown paper bag. :paperbag: )
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Dont worry b*cat, you werent the only one... I had to look twice as it got me first time too :friends:
If it was anywhere else then btw = by the way... Thats why I always type BTw when I mean BT.
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easy mistake, now days we just assume everyone is FTTC and is kinda surprising when they adsl :D
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This ADSL2 (not ADSL2+) user tries to remember where he left the paper tape reader and the card punch . . . ;)
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After asking nicely over at the TalkTalk forum they have deactivated the DLM on my line . I reset the SNR to default before they did this .
Any advice on how to ste up the router my line stats are follows :
DSP Firmware Version A2pB025f.d22k
DMT Status No Defect
Operational Mode G.DMT
Upstream 608
Downstream 3296
SNR Margin(Upstream) 9.0
SNR Margin(Downstream) 9.0
Line Attenuation(Upstream) 31.5
Line Attenuation(Downstream) 57.0
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It almost looks as if your circuit has been configured with a target SNRM of 9 dB. :-\
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sorry for not replying earlier ...so its not looking ideal then? what would you suggest is the best way now ie tweaking the SNR settings etc with the Billion 7800n now that the DLM has been disabled?
latest stats .. SNR seems to have gone down ..slighty
ADSL Status
Parameters
DSP Firmware Version A2pB025f.d22k
DMT Status No Defect
Operational Mode G.DMT
Upstream 608
Downstream 3296
SNR Margin(Upstream) 9.0
SNR Margin(Downstream) 8.6
Line Attenuation(Upstream) 31.5
Line Attenuation(Downstream) 57.0
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The simplest way of discovering as to what the target SNRM is currently set is to check immediately after the modem/router has been rebooted.
However as you are a fellow TalkTalk service user, it would be simplest to request (via the Members' Forum) for your target SNRM to be set to 6 dB.
The TalkTalk ADSL profiles are documented here (http://www.talktalkmembers.com/t5/Introductions-and-Anything-Else/TalkTalk-Profiles/td-p/177660).
I have the DLM disabled on my line and a profile of 8ISNR6 (upto 8 Mbps DS, interleaved, target SNRM 6 dB).
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Morning burakkucat ok will do ;)
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Just asked at TalkTalk forum and got an immediate response :)
Parameters
DSP Firmware Version A2pB025f.d22k
DMT Status No Defect
Operational Mode ADSL2
Upstream 848
Downstream 3810
SNR Margin(Upstream) 5.6
SNR Margin(Downstream) 5.9
Line Attenuation(Upstream) 35.2
Line Attenuation(Downstream) 57.0
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That's a good result. :thumbs:
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is there any point tweaking any further using the SNR tweak on the Billion?
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With DLM turned off you can always experiment. I think what I would do is monitor the SNRM for 24 hours to see how low it drops at the worst point. Then make sure that any tweak still leaves (say) 3 dB to spare at that worst point.
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cheers roseway will do ...appreciate your help :)
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just a quick update ..things are changing ...
DSP Firmware Version A2pB025f.d22k
DMT Status No Defect
Operational Mode ADSL2
Upstream 840
Downstream 4013
SNR Margin(Upstream) 4.5
SNR Margin(Downstream) 2.6
Line Attenuation(Upstream) 35.2
Line Attenuation(Downstream) 58.5
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Firstly . . . Agreeing with Eric's recommendation. When tweaking, ensure that the SNRM does not go below 3 dB at the lowest point in an average 24 hour cycle. :)
Secondly . . . Eek. Your DS SNRM has already dropped to 2.6 dB. That could be due to interference from a "local disrupter". Ideally we would need to see a few days worth of graphs to get some feeling as to what is happening with your circuit. :-\
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Thanks burakkucat will monitor and update in a few days :)
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the min snrm depends on the line,.
When I was on adsl if I tried to even touch 3db it would explode with errors and be unusable.
But on a good line I know people can have really low margins and be fine.
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I have not adjusted anything here...what would be the best configuration
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ADSL Mode: Untick both items
Modulator:Untick everything except ADSL2
Capability and PhyR can be left unticked as they are, because these features aren't supported by TalkTalk anyway.
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great thanks :)
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See http://www.increasebroadbandspeed.co.uk/billion-7800n (http://www.increasebroadbandspeed.co.uk/billion-7800n) on how to tweak the SNR on a Billion 7800N.
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See http://www.increasebroadbandspeed.co.uk/billion-7800n (http://www.increasebroadbandspeed.co.uk/billion-7800n) on how to tweak the SNR on a Billion 7800N.
thanks will check it out
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well its been a good few days since I had the DLM turned off the SNR has fluctuated quite a lot here are some example of the status
Last one is todays...I'm straight wired to the router from my PC but everyone (2 others are via wired homeplugs) they are complaining of slower and erratic speeds since the DLM was disabled.
ADSL Status
Parameters
DSP Firmware Version A2pB025f.d22k
DMT Status No Defect
Operational Mode ADSL2
Upstream 813
Downstream 4172
SNR Margin(Upstream) 5.3
SNR Margin(Downstream) 2.1
Line Attenuation(Upstream) 35.2
Line Attenuation(Downstream) 57.5
speed : 3.58mbps
Ping : 34ms
ADSL Status
Parameters
DSP Firmware Version A2pB025f.d22k
DMT Status No Defect
Operational Mode ADSL2
Upstream 813
Downstream 4172
SNR Margin(Upstream) 5.5
SNR Margin(Downstream) 1.1
Line Attenuation(Upstream) 35.2
Line Attenuation(Downstream) 57.5
Speed :3.64mbps
Ping:36ms
ADSL Status
Parameters
DSP Firmware Version A2pB025f.d22k
DMT Status No Defect
Operational Mode ADSL2
Upstream 813
Downstream 4172
SNR Margin(Upstream) 5.2
SNR Margin(Downstream) 1.8
Line Attenuation(Upstream) 35.2
Line Attenuation(Downstream) 57.5
speed : 2.95mbps
Ping: 36ms
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just realised that I had already tweaked the SNR in the settings before the DLM was turned off . I have now set it to the default -1 to see what happens
The stats right now are
ADSL Status
Parameters
DSP Firmware Version A2pB025f.d22k
DMT Status No Defect
Operational Mode ADSL2
Upstream 791
Downstream 3755
SNR Margin(Upstream) 6.0
SNR Margin(Downstream) 5.9
Line Attenuation(Upstream) 35.1
Line Attenuation(Downstream) 57.0
speed : 3.23
Ping : 37ms
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this is todays satus 2 days on from resetting the SNR to default . Downstream SNR has not gone below this so far
Speed seems to be lower than before I had the DLM disabled
ADSL Status
Parameters
DSP Firmware Version A2pB025f.d22k
DMT Status No Defect
Operational Mode ADSL2
Upstream 810
Downstream 3703
SNR Margin(Upstream) 5.6
SNR Margin(Downstream) 4.6
Line Attenuation(Upstream) 35.1
Line Attenuation(Downstream) 57.0
speed : 3.19mbps
Ping : 31ms
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It might be to your advantage to allow the circuit to resynchronise at around 1100 hours (11:00 AM) one morning.
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It might be to your advantage to allow the circuit to resynchronise at around 1100 hours (11:00 AM) one morning.
thanks for your reply burakkucat ..how do I do that ? the SNR is set to -1 on the Billion snr config
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Unless there is a GUI option which allows the link to be retrained (resynchronised), the simplest method is to power-cycle the modem/router.
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Unless there is a GUI option which allows the link to be retrained (resynchronised), the simplest method is to power-cycle the modem/router.
Dont know if the Billion has a gui for that. When you say power cycle.. Do you turn the router off and then on at around 11.00am?
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That's what he means, but you can reboot the 7800N from its GUI. Have a look at Configuration (Advanced mode) --> System --> Restart.
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That's what he means, but you can reboot the 7800N from its GUI. Have a look at Configuration (Advanced mode) --> System --> Restart.
Excellent thanks ..so around 11.00am ?
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Any time now, it's not critical.
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this is the status 2 hours after doing a restart at 11.00am .
ADSL Status
Parameters
DSP Firmware Version A2pB025f.d22k
DMT Status No Defect
Operational Mode ADSL2
Upstream 808
Downstream 3691
SNR Margin(Upstream) 5.0
SNR Margin(Downstream) 6.3
Line Attenuation(Upstream) 35.1
Line Attenuation(Downstream) 57.0
Speed : 3.15mbps
Ping : 29ms
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Q) Why 1100 hours?
A) It's all to do with the state ionosphere, where in the world it's day time v night time, propagation of radio signals, etc. If the circuit is subject to RFI which is originating from far away, then a resynchronisation at around that time when the signal to noise ratio is at its maximum may result in the best synchronisation speeds.
NewtronStar, through practical experience, is an expert in the matter of the propagation long range radio signals and the interference they cause to an xDSL circuit. :)
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so now do I just monitor for a while?
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The simplest method would be to make use of Eric's utility, DSLstats (http://www.s446074245.websitehome.co.uk/).
If you also create an account with Tony's MyDSLWebStats (http://www.mydslwebstats.co.uk/) site, the data harvested by DSLstats can be uploaded for viewing by anyone, anywhere. (So if you want an opinion upon your US SNRM between 22:23 and 03:17 hours a week ago last Tuesday - Wednesday, for example, anyone of us could look up the relevant graph for that time period.)
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The simplest method would be to make use of Eric's utility, DSLstats (http://www.s446074245.websitehome.co.uk/).
If you also create an account with Tony's MyDSLWebStats (http://www.mydslwebstats.co.uk/) site, the data harvested by DSLstats can be uploaded for viewing by anyone, anywhere. (So if you want an opinion upon your US SNRM between 22:23 and 03:17 hours a week ago last Tuesday - Wednesday, for example, anyone of us could look up the relevant graph for that time period.)
Ok burakkucat will do ..thanks for the link ..Hurrah!! a linux version too!!
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thanks for the link ..Hurrah!! a linux version too!!
In-deedy! Us penguin-huggers should stick together. :D
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thanks for the link ..Hurrah!! a linux version too!!
In-deedy! Us penguin-huggers should stick together. :D
Oh yes sir!! been one now for over 10 years at least (Linux Mint Cinnamon 17 at the moment) and made some converts along the way :)
got my DSLstats running and registered on the site
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Hi all
Could someone please check out my stats at MyDSLWebStats I have set the snr parameters to default -1 .
line seems to be very unstable since I disabled the DLM , just wondering what to do now
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Hi bigbossa!
and greetings to a fellow Linuxer ;D
I also have a Billion 7800N and a long (ADSL1) line which (sometimes) is subject to much interference.
One thing that I would say, and you may have already discovered for yourself, is that Broadcoms PhyR feature is not enabled by default.
So if you update the firmware, or reset to default settings, it will no longer be enabled, even if it had been previously. :(
You can enable it by setting the 'PhyR' check boxes in the modems web interface under Advanced / Configuration / ADSL Mode.
Don't forget to then 'save' the settings so that it is still enabled next time you reboot the
router! ;)
A brief spell with PhyR disabled saw my sync rate and SNR margin hammered by DLM. >:(
Best of luck!
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ahh top man!! thanks for that!
Will report back with my findings