This is a discussion on getting disconnected very frequently within the BSNL broadband forums, part of the DSL Broadband Service Providers category; For the past 1 week, my dataone broadband connection is giving me trouble. I have a Smartex MT882 modem and ...
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| | #1 |
| Junior Member Join Date: May 2008 Age: 21
Posts: 35
Rep Power: 0 | For the past 1 week, my dataone broadband connection is giving me trouble. I have a Smartex MT882 modem and since all the lights are green and steady, i think it is in working order. inspite of that i am getting disconnected very frequently. Can anyone please help? I have tried to contact bsnl people on this number 1957 but no one is picking the phone |
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| | #2 |
| Platinum Member | open your modem configuration & look for some status page.in there check that SNR values are above 10.SNR(upstream/remote)should be at least 15 & SNR(downstream/local)should be at least 26-28.similary Line Attn(upstream)should be at most 15-16 & Line Attn(downstream)should be at most 28-29.larger SNR values the better.smaller Line Attn values the better.
__________________ "They say that if you play a microsoft disc backwards you hear satanic messages, thats nothing: if you play it forwards it installs windows" |
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| | #3 |
| Junior Member Join Date: May 2008 Age: 21
Posts: 35
Rep Power: 0 | This is what i got Upstream DownStream ADSL Link Speed 640 Kbps 2631 Kbps Previous Tx-Rate 640 Kbps 3082 Kbps SNR 19.2 dB 12.0 dB CRC 0 0 Attenuation 36.5 dB 58.0 dB FEC 0 0 HEC(ATM Layer) 0 0 The SNR and Attenuation is different from what you had suggested. So what should i do? |
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| | #4 |
| Junior Member Join Date: May 2008 Age: 21
Posts: 35
Rep Power: 0 | please somebody help me |
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| | #5 |
| Platinum Member | your upstream & downstream Attn are very high & SNR values are too low.get your line checked by bsnl.also make sure that the line coming into the house goes directly into the splitter.no phone/phones must be connected before splitter. |
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| | #6 |
| Junior Member Join Date: Aug 2008
Posts: 10
Rep Power: 0 | Hi all, after looking through this forum I've also discovered this workaround for increasing your overall SNR to ATTN ratio: In the modem's ADSL Settings page (for MT882), change modulation to G.dmt if not already done so. this, for some reason, may keep SNR at around the same level but significantly decreases line attenuation (due to modulation changes im guessing). interestingly, i did a speed test of both the ADSL2+ modulation and G.dmt and G.dmt (with bitswap enabled) gives higher DL speeds! |
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| | #8 |
| Silver Member Join Date: Jun 2008 Location: Udipi, India Age: 19
Posts: 396
Rep Power: 1 | Help, these are my values Up Down SNR Margin (dB): 14.4 9.0 Attenuation (dB): 24.0 10.5 |
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| | #9 |
| The Research Scientist Join Date: Aug 2008 Location: Chennai
Posts: 1,270
Rep Power: 2 | My broadband connection disconnects every 10-15 min. Modem type: SmartAX MT-841 (Type III) SNR Value: 24 db / 7.5 db Attn Value: 26.5 db / 48.5 db Kindly help me in locating the exact reason for this disconnection. |
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