India Broadband Forum

ravikum

Hello,

I have got bsnl broadband connection a week back.
it is PPPoE connection.

It has been continuously getting disconnected for every few minutes.

Though it shows that internet is connected in the windows task bar, no sites open after a few minutes of connecting the internet.
So, i understand that internet is disconnecting for every few minutes.

Whatever i do, i cannot reconnect the internet.
I have to restart my system to connect internet again.

i have set the hang before idle time to 'never'.
I have also set thunderbird to check for new emails every one minute.

I am using DNA-A211-I modem

I have contacted the BSNL exchange people.
They asked me to check for viruses.
I have checked the system and all hard drives, operating system with latest version of avast anti virus.
I didnt find any viruses.

I have disabled windows firewall to check if it works, but no use!

I live in andhra pradesh.

Please help me.
I am very very very frustrated.

Please check the details of my modem.
let me know if you would like to know more info.

Thankyou

--------------

Here are the details:


Statistics -- ADSL

Mode: ADSL2+
Line Coding: Trellis On
Status: No Defect
Link Power State: L0

Downstream Upstream
SNR Margin (dB): 33.5 29.2
Attenuation (dB): 9.0 1.8
Output Power (dBm): 10.3 0.0
Attainable Rate (Kbps): 27688 876
Rate (Kbps): 2044 507
MSGc (number of bytes in overhead channel message): 64 37
B (number of bytes in Mux Data Frame): 14 26
M (number of Mux Data Frames in FEC Data Frame): 1 2
T (Mux Data Frames over sync bytes): 4 1
R (number of check bytes in FEC Data Frame): 16 10
S (ratio of FEC over PMD Data Frame length): 0.2309 3.2821
L (number of bits in PMD Data Frame): 1074 156
D (interleaver depth): 128 8
Delay (msec): 7 6

Super Frames: 60127 57125
Super Frame Errors: 0 0
RS Words: 16835798 1182830
RS Correctable Errors: 0 0
RS Uncorrectable Errors: 0 N/A

HEC Errors: 0 0
OCD Errors: 0 0
LCD Errors: 0 0
Total Cells: 4681622 836978
Data Cells: 121645 15800
Bit Errors: 0 0

Total ES: 0 0
Total SES: 0 0
Total UAS: 16 0

rupu1983

It may be server problem also
At first check for ping drop
Start->run
ping (server ip) -l 1024 -t

ravikum

Hello,
Thank you for your reply.
I have pinged some sites and there is no drop.

Is there anything else going wrong?
Thank you.

thats_me

If you have parallel lines with more than one adsl splitter then Disconnection happens. Also this might be a problem with the wires. Make sure that when you connect to internet the SNR does not fall by a large value.

tnsantosh

Hi ravikum!!


I have the exact problem. in fact i have the same modem (ITI DNA A211-I), with similar modem statistics. I moved to Ongole, Andra pradesh from chennai last month. I got my net connection jus 3 days before. My plan is 1350 UL (512kbps). At first when i was downloading movies (torrents) i found that the speed graph in utorrent was falling suddenly to 0 and stayed there quite a few mins before resuming. I was using the connection directly through modem. But then, i got suspicious (since i never experienced these probs in chennai), that the problem may be due to some poor lines. So, i changed to Dialer mode and my doubts were confirmed, that, now i get a dialog popping up saying tat "link to dataone failed. reconnection pending".This happens to me like once every hour or two. Then i started googling and found that (in indiabroadband.net) number of others had reported similar prob. i have been patient enuf to read as many posts i can to find the fault. But, i cudn't find any values or parameters with insufficient value. i have phoned the local office and they have said me that the line is faultless, and tomo they will inspect the modem. Hopefully it clears the prob, else am gonna post a new thread seeking new help, coz i cant find any problem in the modem statistics.

Am not pinning much hope on the bsnl guys. Dunno how i am gonna solve this one. Anyway, did u got the problem solved? if yes any suggestions?

player

This is one of the major trademarks of BSNL which is "Frequent Disconnection"

Now coming to the point, make sure you have checked these, as this problem lies mostly at the hardware parts like wires, DP, splitter etc

Check these
-- Your line is crystal clear(irks and kirks free)
-- No telephone is connected before the splitter
-- Joints in the telephone line is properly insulated, should free of carbon(if there's a break in the line though)

Gary4gar

Also, try changing the wire of your line. it causes problem if there are too many joints and its get old

essbebe

@ravikum also @tnsantosh

Your line conditions are fine. SNR is also good.
Attn of line shown 9 db and 1.8 db is extremely good.

Your modem/router is equivalent to G3002-G4
For reference :
Chennai Telephones- Changing password in DataOne Pre-configured modem
see @vikrasmjb's suggestion.
New Page 1
troubleshooting

Para two;
Try this suggestion ;
1.open 192.168.1.1/main.html admin admin
select Access control page
See http://i19.tinypic.com/6kqygzt.jpg

keep only GDMT/Glite/T413 Bitswap enabled.
Rest ADSL ADSL2+ etc uncheck.

Also check setup:
India Broadband Forum

Give feed back +ve or -ve.

vikramjb

To add to suggestion, are you using any other BB other than BSNL in the same machine ?. One other thing, check you local network properties see if it is configured get the ip address dynamically.

essbebe

@vikramjb
Good suggestion. Added another link for this.
Anyway the website given by me
shows full settings for modem with screen shots.
( the title is misleading )

Regarding another BB connection.
Will not make a difference. I have two isp's
programmed in the same modem.
Change only Rj11 from modem to concerned ISP's phone port.

tnsantosh

thanks essebe and vikramjb!!! those are certainly some points that i have to look. Nice links essebe!!. I am gonna try out every strategy. will get back to u guys soon. hope, i am successfull!!

thanks again guys!!!

U r sayin abt the "optain ip address automatically" in LAN TCP/IP properties, right? Yes it is set to that only. Also i am using only dataone!! no other services.

totallyfandu

Disconnection is mainly due to line fault or due to splitter fault or sometime it is due to Modem itself faulty and in rare cases ur power adapter can cause this. You already told that u change ur line whether u did other steps or not . I think it may help u

simsandy43

format the computer and then try it with new and fresh OS

gsk6u

I have the same problem!...MY Modem is ASDL c2110

Check my configuration and please suggest me a solution

Attached Images

untitled.JPG (101.0 KB, 37 views)

cool_techie_tvm

^^ First of all try changing the ADSL Modulation from ADSL2+ to G.DMT. There should be a marginal increase in the downstream SNR.

tnsantosh

@gsk6u,

Ur SNR values are clearly out of range!!!! Clearly there is some problem in line i guess. so, try cool_techie_tvm suggestion. that sud help u. As for me, the prob is still there. any suggestions please help me and of course please post ur suggestions for my case in this thread /bsnl-broadband/13720-help-dataone-frequent-disconnection.html. Since i have posted my entire detailed status there and don wanna spam unnecessarily here!!!

thats_me

Those who have SNR problems should check telephone wirings. If possible have the wires from the local telephone box to your house changed. It does'nt cost money. A little buttering should do it ....lol.

essbebe

@gsk6u
try to change mod to GDMT or T413.
sorry repeated post 15.
Extra!
use opendns 208.67.220.220 and 208.67.222.222

There are two modems. For One Firmware upgrade suggested.
Check here
http://www.calcuttatelephones.com/da...tall/mu09.html

just4kix

This solution is like tera down the complete house and build a new one because an electric point in the kitchen is not working.

What you must do is look at SNR Margin, Attenuation rate, etc. 99% of the time the problem is because of:

a) Old wires - outside the home and inside
b) Corroded connections at the telephone junction box
c) Parallel telephone lines before the splitter

Data is very sensitive to attenuation in line - Voice is not.

__________________

cool_techie_tvm

Its actually done for free over here. Dont know about other circles.