India Broadband Forum

BattleHammer · 05-01-09, 10:17 PM

Recently there is huge disturbance in my boradband,like frequent disconnections,link failure etc.
Can anyone tell me that is SNR ratio(maybe sound to noise ratio,just a guess) and Attenuation Up/Down?
My stats are as follows:
Bandwidth Up/Down(Kbit/sec):864/10016
SNR Up/Down:11 dB /8.5 dB
CRC Up/Down:0/0
FEC Up/Down:0/0
HEC Up/Down:0/0
Attenuation Up/Down:6.5 dB /16.0 dB

Is there any huge indication of a problem?Is it a line failure?
Please,i am so noob in this,but please help me,i contacted the BSNl authorities,they say they tested my line and its good,i dunno whats happening!
thanks You in advance!

yashom · 05-01-09, 10:32 PM

how do u get these ratio's???
i am noober than u

BattleHammer · 05-02-09, 01:41 AM

by logging in my router lmao

essbebe · 05-02-09, 09:16 AM

@yashom
You could have mentioned the modem/router you use.
In any post always mention this.
Assuming you use now Modem/router GLB502T

Open your modem settings page .

Check under status.
D

h t t p://dlink.in/GLB502T_Guide_modified/BSNL_PPPoE.htm

BattleHammer · 05-02-09, 01:56 PM

i use the old BSNl sterlite Huawei SmartAx MT841

essbebe · 05-02-09, 02:07 PM

@Battlehammer
Modem AX Mt841

See in Summary page whether ADSL2+ is selected.
Change it to GDMT
( selection will be Auto in modem page )

For reference:
ht t p://210.212.160.18/broadband-conf/type4.htm

h t t p://www.mp.bsnl.co.in/bb/mt841/mt841.htm

Check all connections for corrosion/blackening/ etc.
Use good quality Rj11 Short cable to modem.

Hope you have connected all PHONES AFTER the
AdsL SPLITTER phone PORT.
SNR should improve.

How far, you are from the Exchange ?
What is your tariff plan ?

yashom · 05-02-09, 04:50 PM

Quote:

Originally Posted by essbebe

@yashom
You could have mentioned the modem/router you use.
In any post always mention this.
Assuming you use now Modem/router GLB502T

Open your modem settings page .

Check under status.

1. I am using the router u assumed I used.
2. when I come in status tab...what values should I look at
3. sub tabs in status:
Network Statistics
Connection Status
DDNS Update Status
DHCP Clients
QOS-TCA NTCA Status
Modem Status
Product Information
System Log
4. I am getting low speeds....hav tried everything.
wanna see if this diagnoses the problem.

player · 05-02-09, 07:29 PM

Just forget about everything and look at the SNR ratio, as in your case its too low you will surely face sluggish speeds and disconnections this can due to the following reasons

--Your phone line is almost in the grave and needs replacement
--You are in ADSL2/2+ mode switch to G.dmt mode

If you have already done the above mentioned points and still you are struggling then its better to wait as the BSNL server could be down

essbebe · 05-02-09, 07:45 PM

@yashom
should be a similar page adsl status.
post screenshot as annexure or type all the details.
we need to check the Mod selected SNR line rate attn etc data.

http://img128.imageshack.us/img128/8669/aaqf7.jpg

yashom · 05-02-09, 08:41 PM

Quote:

Originally Posted by essbebe

@yashom
should be a similar page adsl status.
post screenshot as annexure or type all the details.
we need to check the Mod selected SNR line rate attn etc data.

MY GLB-502T has a very different menu
I cannot find SNR or attenuation anywhere...

status:

advance:

tools:

essbebe · 05-02-09, 08:46 PM

http://i42.tinypic.com/2djvtxg.jpg

select the menu items in the left one by one.
Probably Modem status or connection status.

let me check the other screen shots. will update.

BattleHammer · 05-03-09, 12:56 AM

yes i have that Operation mode set on GDMT.
i use a good cable to connect my modem and computer
i have the other phone lines after my ADSL splitter
and the telephone exchange is about 250 meters from my house....
still i get the same stuff :'(

i have one phone line only by the way that is connected to the splitter along with the ADSL line to the modem..
my phone line is just about 2 months old O.o
why BSNL why? :'(

my plan is unlimited 1350 ...

chanky.mallick · 05-03-09, 04:28 AM

very tough

yashom · 05-03-09, 09:35 PM

Quote:

Originally Posted by essbebe

http : //i42 . tinypic . com/2djvtxg . jpg

select the menu items in the left one by one.
Probably Modem status or connection status.

let me check the other screen shots. will update.

dude instead of me posting so many pictures plz see the following link...i hope u tell me how to check SNR & attenuation for my router GLB-502T_ADSL2+_ROUTER

http: // www . dlink . co . in/Upload/UploadDownload/User_Mannual_GLB-502T_version%201 . 0 . pdf

essbebe · 05-04-09, 01:26 AM

Quote:

dude instead of me posting so many pictures plz see the following link...i hope u tell me how to check SNR & attenuation for my router GLB-502T_ADSL2+_ROUTE......

I had narrowed the choice to modem status
or connection status.

http://www.dlink.co.in/GLB502T_Guide_modified/index.htm

Anyway , this is the page, which i have in my Data base.
Retype the link you had given correctly without http. .

Post the screen shot of "modem Status" page of modem GLB802C for analysis. as an annexure.

yashom · 05-04-09, 03:20 AM

http : //i42 . tinypic . com/2cfryp2 . jpg

essbebe · 05-04-09, 09:26 AM

http://i42.tinypic.com/2cfryp2.jpg

(A)DSmargin 7 means your connection is bad.
contact Exchange.
You local line from exchange attenuation 12 is low.
does not appear any problem.

Para two :try TCP/IP opitimizer application, from
speedguide.net and recheck above values.

yashom · 05-04-09, 06:33 PM

Dude what should I tell BSNL people???
will the operator understand if I say "DSmargin = 7"
or should I ask them to clear line or reduce noise or watever?
~~~~~~~~~
also...can u please tell what others values are bad???

when I play diablo2...i get high pings. really wanna reduce the ping & latency.

appreciated.

essbebe · 05-04-09, 07:04 PM

Did you download TCP/ip optimizer? and try it ?
From screen shot cannot find any other fault.
How far you are from the Exchange ?
DS margin or SNR margin should be min 10 or more . I get 32 db.
Also check "connection status"

Tell BSNL that your connection is intermitent and
Data signal is low.
presume you have connected all Phones AFTER the ADSL splitter.

yashom · 05-04-09, 08:18 PM

*now DS margin reduced to 5.
*I am about 100meter from BSNL exchange office. which probably has the server.
*whr is my attenuation(not ds attenuation) from that pic.??
*and DS Margin= noise, higher the better....so what is US Margin?
*I cannot understand that TCP/IP optimizer...It shows "MTU" , "BDP/RWIN", "Latency" etc.

~~~~~~~~~~~~~~~~~~
it really sux when u see this:-
http : // www . speedtest . net/result/466087476 . png

05-01-09, 10:17 PM	#1
BattleHammer Junior Member Join Date: Feb 2009 Posts: 7 Rep Power: 1	Please help me! Recently there is huge disturbance in my boradband,like frequent disconnections,link failure etc. Can anyone tell me that is SNR ratio(maybe sound to noise ratio,just a guess) and Attenuation Up/Down? My stats are as follows: Bandwidth Up/Down(Kbit/sec):864/10016 SNR Up/Down:11 dB /8.5 dB CRC Up/Down:0/0 FEC Up/Down:0/0 HEC Up/Down:0/0 Attenuation Up/Down:6.5 dB /16.0 dB Is there any huge indication of a problem?Is it a line failure? Please,i am so noob in this,but please help me,i contacted the BSNl authorities,they say they tested my line and its good,i dunno whats happening! thanks You in advance!

05-02-09, 01:41 AM	#3
BattleHammer Junior Member Join Date: Feb 2009 Posts: 7 Rep Power: 1	lol by logging in my router lmao

05-02-09, 01:56 PM	#5
BattleHammer Junior Member Join Date: Feb 2009 Posts: 7 Rep Power: 1	sterlite i use the old BSNl sterlite Huawei SmartAx MT841

05-03-09, 12:56 AM	#12
BattleHammer Junior Member Join Date: Feb 2009 Posts: 7 Rep Power: 1	hi again yes i have that Operation mode set on GDMT. i use a good cable to connect my modem and computer i have the other phone lines after my ADSL splitter and the telephone exchange is about 250 meters from my house.... still i get the same stuff :'( i have one phone line only by the way that is connected to the splitter along with the ADSL line to the modem.. my phone line is just about 2 months old O.o why BSNL why? :'( my plan is unlimited 1350 ... Last edited by BattleHammer; 05-03-09 at 12:56 AM. Reason: Automerged Doublepost

05-04-09, 09:26 AM	#17
essbebe Platinum Member Join Date: Aug 2007 Location: Chennai Posts: 4,246 Rep Power: 12	http://i42.tinypic.com/2cfryp2.jpg (A)DSmargin 7 means your connection is bad. contact Exchange. You local line from exchange attenuation 12 is low. does not appear any problem. Para two :try TCP/IP opitimizer application, from speedguide.net and recheck above values. Last edited by essbebe; 05-04-09 at 10:01 AM.

05-01-09, 10:32 PM	#2
yashom Junior Member Join Date: Apr 2009 Age: 21 Posts: 24 Rep Power: 1	how do u get these ratio's??? i am noober than u

05-02-09, 09:16 AM	#4
essbebe Platinum Member Join Date: Aug 2007 Location: Chennai Posts: 4,246 Rep Power: 12	@yashom You could have mentioned the modem/router you use. In any post always mention this. Assuming you use now Modem/router GLB502T Open your modem settings page . Check under status. D h t t p://dlink.in/GLB502T_Guide_modified/BSNL_PPPoE.htm

05-02-09, 02:07 PM	#6
essbebe Platinum Member Join Date: Aug 2007 Location: Chennai Posts: 4,246 Rep Power: 12	@Battlehammer Modem AX Mt841 See in Summary page whether ADSL2+ is selected. Change it to GDMT ( selection will be Auto in modem page ) For reference: ht t p://210.212.160.18/broadband-conf/type4.htm h t t p://www.mp.bsnl.co.in/bb/mt841/mt841.htm Check all connections for corrosion/blackening/ etc. Use good quality Rj11 Short cable to modem. Hope you have connected all PHONES AFTER the AdsL SPLITTER phone PORT. SNR should improve. How far, you are from the Exchange ? What is your tariff plan ?

05-02-09, 07:29 PM	#8
player Platinum Member Join Date: Jan 2008 Location: India, Bangalore Age: 19 Posts: 1,222 Rep Power: 3	Just forget about everything and look at the SNR ratio, as in your case its too low you will surely face sluggish speeds and disconnections this can due to the following reasons --Your phone line is almost in the grave and needs replacement --You are in ADSL2/2+ mode switch to G.dmt mode If you have already done the above mentioned points and still you are struggling then its better to wait as the BSNL server could be down

05-02-09, 07:45 PM	#9
essbebe Platinum Member Join Date: Aug 2007 Location: Chennai Posts: 4,246 Rep Power: 12	@yashom should be a similar page adsl status. post screenshot as annexure or type all the details. we need to check the Mod selected SNR line rate attn etc data. http://img128.imageshack.us/img128/8669/aaqf7.jpg

05-02-09, 08:46 PM	#11
essbebe Platinum Member Join Date: Aug 2007 Location: Chennai Posts: 4,246 Rep Power: 12	http://i42.tinypic.com/2djvtxg.jpg select the menu items in the left one by one. Probably Modem status or connection status. let me check the other screen shots. will update.

05-03-09, 04:28 AM	#13
chanky.mallick Junior Member Join Date: Dec 2008 Age: 19 Posts: 23 Rep Power: 1	very tough

05-04-09, 03:20 AM	#16
yashom Junior Member Join Date: Apr 2009 Age: 21 Posts: 24 Rep Power: 1	http : //i42 . tinypic . com/2cfryp2 . jpg

05-04-09, 06:33 PM	#18
yashom Junior Member Join Date: Apr 2009 Age: 21 Posts: 24 Rep Power: 1	Dude what should I tell BSNL people??? will the operator understand if I say "DSmargin = 7" or should I ask them to clear line or reduce noise or watever? ~~~~~~~~~ also...can u please tell what others values are bad??? when I play diablo2...i get high pings. really wanna reduce the ping & latency. appreciated. Last edited by yashom; 05-04-09 at 06:58 PM.

05-04-09, 07:04 PM	#19
essbebe Platinum Member Join Date: Aug 2007 Location: Chennai Posts: 4,246 Rep Power: 12	Did you download TCP/ip optimizer? and try it ? From screen shot cannot find any other fault. How far you are from the Exchange ? DS margin or SNR margin should be min 10 or more . I get 32 db. Also check "connection status" Tell BSNL that your connection is intermitent and Data signal is low. presume you have connected all Phones AFTER the ADSL splitter.

05-04-09, 08:18 PM	#20
yashom Junior Member Join Date: Apr 2009 Age: 21 Posts: 24 Rep Power: 1	*now DS margin reduced to 5. I am about 100meter from BSNL exchange office. which probably has the server. whr is my attenuation(not ds attenuation) from that pic.?? and DS Margin= noise, higher the better....so what is US Margin? I cannot understand that TCP/IP optimizer...It shows "MTU" , "BDP/RWIN", "Latency" etc. ~~~~~~~~~~~~~~~~~~ it really sux when u see this:- http : // www . speedtest . net/result/466087476 . png Last edited by yashom; 05-04-09 at 08:18 PM. Reason: Automerged Doublepost

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