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The lower theThis figureThis figure is subjectThe higher your SNR Margin, the betterIf your SNR Margin drops too lowYou will likelyPlease note that this method is not fool-proof because lines thatOr it may be. Values between about 65400 and 65535 would be possible; this is equivalent to a range between -136 and -1. Thanks to roseway for bringing attention to the overflow hack that allows SNR tweaking of more than -5.5dB and the suggested values. His post and further discussion on the subject of amending the target SNR for Broadcom chipsets be viewed on the Forum. Just add one of our bolt-ons Funnily enough I started to read a thread over there the other day on this sort of thing, and needless to say a few of your posts cropped up At the mo I run a DOS command prompt and telnet directly to the router (see attached). The firmware offers both the adsl and adslctl commands so no problem there. I've yet to discover if I can login via a script or batch file and get any useful output, as I said my scripting is a little rusty, i.e. not used since Win95 cheers GrahamThe firmware offers both the adsl and adslctl commands so no problem there. Having got the scripts working reliably with automated telnet logins (via Plink, not Windows Telnet) - (eventually) it then just seemed natural to adapt them for use with some routers on ADSL connections. Cheers, Paul. Careful editing of the original login files is therefore needed if using Notepad to edit them. Some, however, such as the HG612 need the login files to have Windows line endings. It might be worth experimenting with different line ending formats. The supplied Login files were saved in Linux format.I'm currently editing the.BAT file to suit and will post back once I have some results.I'm currently editing the.BAT file to suit and will post back once I have some results. I'm please that you got it working. I hope it is of some use to you.
http://gosselindesign.com/images/from_fckeditor/dialta-di2510f-manual.xml
By different format, do you mean regarding the missing data from the current stats montage, or the ongoing stats harvesting (or both). An example of intended portrait montage appearance is attached along with my own FTTC connection's IP Profiles over almost 12 months. I thought you'd got it going OK. Quote Looking at it another way, it is that my line does not suffer from RF interference at all, and should not have any tones marked as unusable. Ah, ha. Don't assume that. You aren't suffering any obvious broadcast interference. Don't forget there will be a very large number of other pairs in the cable back to the exchange and there will be small coupling effects between them all. Now whether for some strange reason that causes the effects that you are seeing, well who knows, but one to bear in mind.I've set mine to 2 minutes as anything less seems to interfere with RS's normal operation. The comment on RF interference was in regard to the AM Radio broadcasts that x47c was obviously suffering from. Now crosstalk with other subscriber cabling is a different matter, and one I've yet to explore. With SNR margin tweaking, your downlink broadband speeds are no longer dictated by equipment (shown above) in the BT exchange. SNR margin adjustment could more than double your downlink connection speed on its own. When combined with some of our other recommendations, such as an ADSL faceplate and a better modem router, you could get even greater broadband speed improvements. New! Now that superfast broadband is now available to 95 of premises, please do check whether you can now access superfast or ultrafast broadband in your area by using our postcode checker on our Broadband Deals page. The target Signal-to-Noise Ratio (SNR) margin is particularly important in defining your broadband download speed. It effectively defines the buffer required in signal-to-noise ratio to protect your broadband connection from the fluctuations that can occur over time in signal and noise levels.
http://www.leistung-erfahren.at/admin/fckeditorupload/dialta-di351-manual.xml
Poorer lines tend to require higher target SNR margins to avoid regular disconnections. This specific margin that the exchange tries to achieve is called the target SNR margin. The higher the target SNR margin, the lower your connection speed. As we will discuss, since a modem measures the downlink SNR and reports this measurement back to the BT exchange equipment (which then sets the downlink connection speed), it is possible (with some modems) to adjust this measurement so that the BT exchange equipment believes that the SNR is higher than it really is so that it sets a higher connection speed than it would have done. BT can increase your downlink target SNR margin to 18 dB When your broadband service is first switched on, the target SNR margin is set by the BT exchange equipment at 6 dB. On a good line, BT generally considers that a 6 dB SNR margin is appropriate to maintain a connection without a significant number of drops or errors. The corresponding target margin for TalkTalk equipment is 9 dB. As part of the Digital Line Management process, the exchange equipment continuously monitors your broadband connection, for example recording the number of times that it drops and the number of errors it suffers. BT’s DLM system, or BT’s manual intervention, can increase the target SNR margin to a maximum value of 18 dB. Once the BT exchange equipment has increased the target SNR margin, it can take days for the target SNR margin to be reduced and, in some cases, it is never reduced. In the worst case scenario, you may be saddled with very slow downlink speeds caused by an 18 dB target SNR margin when your line could work perfectly with a 3 dB (or less) SNR margin. We will show you how to adjust your target SNR margin to any value that you desire. You will no longer be a slave to Digital Line Management in your exchange.
https://formations.fondationmironroyer.com/en/node/12851
Relationship between downlink speed and target SNR margin To demonstrate the impact of different target SNR margins on downlink connection speeds, here are some results from an ADSL connection based in rural Cambridgeshire. With the modem used (the Billion 7800N ), it has been possible to demonstrate how the downlink connection speed is affected by the target SNR margin. In this example, the downlink speed is only 3008 kbps when the target SNR margin is set at 18 dB, which is substantially lower than the 5568 kbps achieved by the BT default target SNR margin of 6 dB. With this particular connection, it was possible to reduce the target SNR margin to only 1 dB, while maintaining the reliability of the connection, to achieve an amazing 6624 kbps downlink connection speed. This connection speed is 120 faster than the connection speed with an 18 dB target SNR margin. Downlink target SNR margin (dB) Downlink connection speed (kbps) 18 (worst case) 3008 15 3616 12 4096 9 (TalkTalk's initial default) 4768 6 (BT's initial default) 5568 3 6240 1 6624 Table: Effect of target SNR margin on downlink connection speed Please bear in mind that lowering the downlink target SNR margin can increase the number of line drops or line errors, and not all lines with be stable at 3 dB SNR margin or lower. However, you can try to see what target SNR margin works best for your line, to get the optimum balance between reliability and connection speed. Particularly where you have made significant improvements to your line (for example, by purchasing a new modem or installing a faceplate broadband filter) your line may be able to tolerate substantial reductions in target SNR margin without adversely affecting reliability. How can I tweak the target SNR margin. The ability to tweak the target downlink SNR margin depends critically on the make and model of your modem.
https://www.kroatien-croliday.de/images/colorado-consent-manual.pdf
You can easily tweak the target SNR margin with a Billion modem router Of all the methods, by far the easiest is to purchase a Billion modem router. These incorporate a very simple target SNR margin adjustment page (and full instructions are provided on our dedicated Billion 7800DXL, Billion 8800NL and Billion 7800N pages). Target SNR margin adjustment with these modems is very simple, and the modems store the SNR settings even when they have been switched off. If you’re considering replacing your existing modem, Billion models are perfect for broadband users wanting to get the very highest speeds from their broadband connection and we strongly recommend them. DGTeam has develop custom firmware with SNR margin adjustment DGTeam provides unofficial custom firmware developed for selected Netgear modems. This firmware allows the downlink target SNR margin to be adjusted (which cannot be done using the standard Netgear firmware). The firmware is free of charge to download, and versions are available for the following models: Netgear DG834GT Netgear DG834PN Netgear DG834N-V1 Netgear DGN2000 Netgear DG834(G) V1 V2 DG834(G) V3 DG834(G) V4 Netgear DG834GTB (Annex B) Netgear DG834PNB (Annex B) We have regularly used the DGTeam firmware over a number years, and have found it very reliable and easy to use. Please note that the target SNR margin adjustment using the DGTeam firmware is limited to about -5.5 dB in the downward direction. This means that if BT has increased your target SNR margin to 15 dB, for example, you will only be able to decrease this to about 9.5 dB. RouterStats allows you to monitor your connection stats and adjust the target SNR margin with a supported modem RouterStats is powerful free software (which runs with Windows or Linux) that connects to your modem to provide a comprehensive range of statistics and graphs. They point out that all routers are different and users may need to do some detective work to get RouterStats working with a particular modem.
We find the RouterStats software is relatively complicated to use, but if you have the time to search the Internet for support information, then it may provide a cost-effective way to change the target SNR margin. From your PC, configure a telnet connection to your modem. So, if your modem is set up as then, from the Command Prompt, type: telnet 192.168.1.254 and then enter the login ID and password. The optimum value of N is determined by BT’s current target SNR margin and your desired target margin. Basically, you start off with whatever your default target SNR margin value is, and work your way down the table (to increase speed) until you find the optimum setting for your line. You can always reset back to the default value by using the number 100. Note that you can use values between those shown, but we wanted to avoid having a huge table. Also, note that the target SNR margin settings will be reset once the modem is rebooted, severely limiting its practical usefulness. It could make a big difference to broadband speeds We hope that you have gathered from this page that the downlink target SNR margin is a very important factor in determining your downlink connection speed. You pay a high price in terms of broadband connection speed if the target SNR margin is increased by BT’s Digital Line Management from its default 6 dB setting. We have documented a number of ways in which you may be able to reduce your downlink target SNR margin to substantially increase your speeds. The easiest way to adjust your target SNR margin is to upgrade to a modem equipped with this feature. It can be obtained here from Amazon UK at a great price. The small commission we generate from you following this link helps keep this broadband information going. Thanks! Please visit some of our other popular pages: Save money and get faster speeds with our Broadband Deals. Get the most of your WiFi with our WiFi optimisation guide.
Speed up your broadband using our Increase Broadband Speed Guide. Consider an ADSL faceplate, as explained on our ADSL Faceplate page. Get the most from online speed tests with our online speedtest guide. Check the latest BT broadband deals. FTTC and FTTP Explained Ten Reasons You Need Superfast Broadband Chart of BT FTTC Speeds Versus Distance From the Street Cabinet Which Fibre ISP. What's Involved in a Fibre Broadband Installation? What is G.Fast? UK Broadband Statistics How to Improve your existing connection Increase Broadband Speed Guide How to Determine Your Connection Speed Fit a Filtered Faceplate Which ISP. To make changes to the loginClick on the Configuration tab, and select the LoginIf you have aIf you're trying to get DSLstats to work with anIP address - The same address as you enter into aIn most cases this willTelnet port - The port through which the routerIn most cases the standard port 23If you enter a wrongRequires command to enter shell - Leave this optionShell command - If the extra command is required asStats command prefix - The base part of the telnetWithout thisReset login configuration - When you press thisIf you use this model or anotherSpecial login is enabled - This message is shown if. After this youThe result should be theA few Netgear models use a different process for enabling. Subscribe for Updates. We hope you'll join the conversation by posting to an open topic or starting a new one. Through the help of others I've managed to get into the router with 'Putty' and have a few commands, but it would be nice to see a few more. Whilst I have a background in computing, Telnet is new to me. Thank you. Another command allows me to change the Noise Margins ( adslctl configure --snr NN - where NN is the percentage of the original noise margin). I've tried some searches on-line, but I would love to know of a resource where I can get a complete list or useful commands.
It would also be nice to know if there is a specific command retain any new settings made in this way to the router. If the connection is reset, then the changes are retained, but if the power is lost, then the router forgets them all.So do I understand correctly that adslctl info --stats and adslctl configure --snr NN also work on the DGND3700. I'd try it for myself, but I've just replaced my DGDN3700 with a Billion 7800N. I haven't decided what to do with my DGDN3700 yet. I'll probably wait until there's a firmware update to fix the red light issue, then decide whether I like the DGND3700 or the Billion 7800N better.So do I understand correctly that adslctl info --stats and adslctl configure --snr NN also work on the DGND3700. Yes, the two example commands, I quoted above, I have specifically tried and managed to work in my DGND3700. I am aware that the thread is discussing the Netgear DG834GT, so I was wondering where I might find a resource listing all the possible commands and how they can be utilised.That's one of the really nice (undocumented) features of the Billion 7800N. I used the 7800N's web interface to tweak my SNR margin from 15 dB down to 6 dB last night, and went from a BRAS profile of 2000 Kbps to 3000 Kbps. I'm going to wait for a firmware upgrade to fix the red light issue on the DGND3700, then see which of the two routers gives me the faster, more reliable connection. The DGND3700 has a slightly better hardware specification than the 7800N, but at the moment, the firmware just isn't up to scratch.Obviously the main documentation is going to be held within Netgear's archives, but I have found a few other links to various other sites. Mostly these site are places that I have seen before and repeat the same information. However this document may provide some useful information: Some of the commands are supported and this doc provides some useful examples. Unfortunately I can't upload it to this forum, so should the link be broken in the future.
However, please feel free to post links to other resources. It's available from busybox.net. Anything I advise may break your router and void your warranty.I want if anyone knows how to disable telnet on 3700 now.Use the facility to go in and check your stats periodically. Take a particular interest in the CRC errors. If this is too high, then you will need to reduce that connection speed a little. As for disabling the access, I don't know how to do this. You could check through that guide to see if there is something which can do this.If you re-boot router it will disable telnet.It is a huge jump though. Use the facility to go in and check your stats periodically. If this is too high, then you will need to reduce that connection speed a little.I am concerned that your ISP was only allowing you to connect at 15Mb when your line can clearly support considerably more. My own connection speed is similar.Yes, but does this also cause it to go back to the default SNR. I'm also wondering whether telnet on these can be initialized with It works on my D3600, but reboot resents SNR. I have searched high and low for a manual for this program, does anybody have a guide to using this program?It may not constitute an official statement on behalf of thinkbroadband.Unauthorised reproduction prohibited -. There is no Archer VR1210V. This router does not support this feature to view these info via telnet or ssh. But in the page there is this instruction: I wanted to compare it to a Fritz, hope I'll have a chance! We suggest replacement with VR1200v. Thank you for contacting TP-Link Technical Support, which naturally remains at your complete disposal. Generate the packet with the source provided here: Stream, ProtocolType. Tcp ); AsyncWaitHandle. WaitOne ( 1000, true ); SelectRead )) Stream, ProtocolType. Tcp ); TrimEnd ( ' \r ', ' \n ' ); Reload to refresh your session. Reload to refresh your session. It may not display this or other websites correctly.
You should upgrade or use an alternative browser. By continuing to use this site, you are agreeing to our use of cookies. Learn More. Now you've said you have a DG834 v3 i might have something that will help Shamelessly nicked from another forum (but always in my bookmarks when playing with netgear routers): Type 'adslctl' for a list of suffixes To adjust the SNR set on startup type 'adslctl start --snr xxx' xxx is a number, 130 gives me a nice stable SNR margin of 8 - which allows my SNR to drop at night without disconnecting everything - it is a good workaround until netgear upgrade their firmware. Click to expand. So if you have a 6db profile and set it to 50 it'll give you a 3db setting. This would mean higher speed but maybe more disconnections, you never know until you've played around with it yourself and see what your connection can handle. Hope that helps Click to expand. If the issue has been fixed, getting the ISP to reset the profile would be as easy as anything.True Tolien but some ISPs do it to avoid more phone calls from customers saying there internet keeps cutting out etc. Minor adjustments could be made if you want to see how far you can push it. On top of that ISPs don't give many profiles to choose from, i know Be's defaults are in mutliples of 3. You could find from your on playing that 4.5 or 5db is the best for your connection before it starts to disconnect but an ISPs profile wouldn't be able to pinpoint that.True Tolien but some ISPs do it to avoid more phone calls from customers saying there internet keeps cutting out etc. On top of that ISPs don't give many profiles to choose from, i know Be's defaults are in mutliples of 3. You could find from your on playing that 4.5 or 5db is the best for your connection before it starts to disconnect but an ISPs profile wouldn't be able to pinpoint that. Click to expand.
I asked them to do this as I was getting dropped connections all the time especially in the evenings (I have a longish line of 55 dB attenuation) I also asked them to put interleaving on as for some reason BT's DLM didn't seem to want to do it but it could be because Max DSL had only just been rolled out and was suffering from a few teething problems My line has settled down now though. Click to expand. The SNR margin (or Noise margin) is the relative strength of the DSL Signal to Noise ratio. Especially during the night-hours there is a higher probability of having a lower SNR margin. It could be working with similar Netgear models (Google is your friend!). Thus, start up your browser and paste the following URL: Upon entering the correct details, you will see the message “Debug Enable!”. For example if your original SNR value was 6 dB, than the 150 percentage would mean that you prefer an SNR value of 9 dB. However it’s better to have a lower bandwidth, than having a connection which constantly drops. It has to be mentioned that the debug options are vanished after a router restart. It is a great product, with excellent Wi-Fi support, a comprehensive settings menu and a cool design. I didn’t complete the setup wizard, I went on and set all settings manually, even before the ADSL connection has been activated. Thus, when the ADSL became alive, I got normally connected to the Internet. Whenever I was typing on the browser (Firefox 2.0 or IE7), the page was redirecting to which is a domain owned by Netgear. I opened the XP hosts file, and did a manual insert there. Type in your browser: Select: Disable Configuration Assistant, and click on Apply. You can re-enable it by navigating to (where 192.168.0.1 is your router’s IP address) To find out more, including how to control cookies, see here. If you want to REVIEW Your ISP then be aware that we use a separate member database and system for that ( Sign-up Here to Review ).
For a better experience, please enable JavaScript in your browser before proceeding. It may not display this or other websites correctly. You should upgrade or use an alternative browser. I'm with Orange BB as at the time they were the only LLU provider in my exchange. Ovbiously all Orange connections have been migrated back to BTW i believe so I'm guessing I'm back on some form of IPStream based product. My exchange (accoridng to Samknows) is due to be upgraded to 21CN WBC around the turn of the year. My question is this, is there anyway of of checking if i'm on an older upto 8mb adsl max package or some remnance of Oranges LLU service (i.e ADSL2). I've posted some basic line stats below. ADSL Link Downstream Upstream Connection Speed 4992 Kbps 448 Kbps Line Attenuation 47.1 dB 29.0 dB Noise Margin 6.7 dB 21.0 dB What does that say? If you can provide that info and i may be able to provide a telnet command which will tell you what modulation is in use or even point (if its a decent router) where in its interface it states it. If it does continue. 2) Exit from the web interface and open a command-line (DOS) window. If its worked there will be a bunch of other useful info like details about interleaving, Noise Margins etc. If that command didn't work try these. See if you can spot when the errors started.Status: Showtime. Last Retrain Reason: 8000. Last initialization procedure status: 0Status: Showtime. Last initialization procedure status: 0. Link Power State: L0. TPS-TC: ATM Mode. Line Status: No Defect. Training Status: ShowtimeSNR (dB): 4.6 8.5. Attn(dB): 15.0 9.2. Pwr(dBm): 0.0 12.6MSGc: 52 12RSUnCorr: 0 0Data Cells: 847366374 233943375. Drop Cells: 0. Bit Errors: 0 3453Modulations:Phone line pair:Capability:This is the second report I have seen on this forum? Is this the 3dB Trial you refer to. As I mentioned I'm only 200m from my exchange, and have had 3dB connections in the past.
It's a little difficult to categorise this problem - the connection characteristics have certainly changed for the worse during and after Week 48, and there now seems to be a second fault which is introducing these errors. I'm hoping it will clear up by itself. Yes, my password is: Forgot your password. Stay logged inSky User - The Unofficial Support Forum for everything Sky. Home Forum New Posts FAQ Calendar Community Groups Albums Member List Forum Actions Mark Forums Read Quick Links Today's Posts Articles What's New. Last Jump to page: There is a chance something might jump out. I haven't changed anything to do with the DSL side of things (all that is different is an extra HTTP server, an application that sets the default values and the extra web interface pages) so it is really strange that the connection is being affected.I don't have this router but I understand that there are still some who have the old V5 and some the 1a4N firmware. TomD Please note the views and recommendations in my posts are my own and in no way reflect the views of SkyUser.Apart from that, if the problems keep going on, would it be much trouble to make a custom firmware based on 5.14.6a4N and the older ADSL driver.If it is because of this firmware, making one based on an older one should be quite easy, the main issue is that it will update back to Sky's firmware as soon as it polls the server (if sky has set your router to be updated to the latest version; they can filter by MAC address). This will tell me what version your router will try and update to.Also, here's another interesting bit of info. I've timed the sync drops and they happen every 3 mins and 20 seconds, almost exactly to the second. Weird, eh? EDIT: Ahh, well after about a dozen times of bowing out at 3:20, it's decided to defy me and hang on past 11 minutes so far. I've tried that download.skyfirmware.com putting the LAN MAC in as instructed (lowercase, no colons) and it just gives a blank screen.
I'm waiting to see if the connection dies again and then I'll try flashing the stock 6.x firmware you posted. EDIT 2: It's now stayed up past 30 minutes connected and the NM is stable.EDIT 3: Conked out again after approx.I guess Sky made it this way so people wouldn't try flashing their routers for no reason (which always has an element of risk, however small) and only if one of their updates had corrupted the flash. There is no easy way to get a router into recovery mode, the only two ways I know of are to either short out part of the flash chip temporarily so that it appears 'bad' (I really do not recommend ever doing that), or stopping boot using the serial port (which has to be soldered on. Although the telnet features in RouterStats are designed primarily around the Netgear DG834The experimental features havePlease read these notesIn addition, some features may be useful for use with the Netgear routers, such as the Telnet Port number andFor example, for the AR7 chipset, RouterStats issues this command -. For routers with one of the Broadcom chisets,Other routers use the more conventional Username and Password method to open a telnet session while still usingMany of these routers should be able to make use of this For some routers, the http options in RouterStats will never work. Sometimes, the HTML layout is tooAnd sometimes, the router uses a webpage-based login method whichThe Experimental Tab tries to address some of these issues in order to widen its scope beyond the. Netgear DG834 series of routers. In the top section of the Experimental page, you can force RouterStats to login to telnetThe HTTPdebug command can be selelcted from a drop-down list (or you can type your own). RouterStats If you can see data in the terminal window when you press the green Run button but nothing is showingUsually, it'sThe Data Timeout xxx milliseconds edit box and the Retry if timeout checkbox work together.
When telnet data is requested from the router and if the checkbox is checked, RouterStats will wait for the If data is not available,It will repeat the process a maximum of twice for each initial request.By checking the Disable http access This means, of course, that none of thePlease bear in mind that, as this feature is experimental, attempting to use some of the http features mayWhen this checkbox is checked, these values will be obtained via telnet instead. When the main black Stop button is pressed, the default action is for RouterStats to leave the. If you prefer the Stop button to disconnectIt should only affect. You can force the graphs into a particular mode using the radio buttons. Note that these radio buttons simply change how the graphs areThe monitoring options on the Netgear Settings tab apply equally to other routers. Equatorial Newtonian Reflector Telescope. SpaceProbe 130mm EQ Telescope pdf Orion is committed to supporting you with yourOrion SpaceProbe 130 EQ Reflector Telescope. SPACEPROBE 130ST EQ Telescope Amazon.com: Orion 9851 SpaceProbe 130 EQ Reflector Telescope: Educational with full-size adjustable tripod and equatorial (EQ) mount for easy manual 1 Feb 2014 Instead with an Orion you’re getting a real telescope and in today’s review we’re going to look at the 9851 Orion SpaceProbe 130 EQ Reflector 4 Apr 2012. This value is normally negotiated between your modem and the exchange while your ADSL connection is being established. By changing the SNR margin manually, you can modify the speed and stability of your ADSL connection. We will use some telnet commands to apply this. 2. Will it make my connection faster. If at the current speed your line is stable enough, you can definitely try to give it even more speed. At some point if you overload it, you will notice either a lot of CRC errors or your modem not being able to sync at all which means you should slow it down again. 3. Will it make my connection more stable.