Thread: SUDDEN SPEED DROP(bsnl broadband)

i took bsnl 500c home plan 1 month ago. untill 1 week ago i used to get a speed abt 200-220 kBps in utorrent.for last week or so i m gettin a max speed of 70 kBps.
"CAN ANYONE PLEASE HELP."
i used to dlod around 3.5 GB per night(2.00-8.00am)
now i can hardly get 900 MB.
i m at my wits end. PLEASE HELP.

Do you remember changing anything near the time you started experincing slow speed from?

Do you experience slow speeds only during the free night time? or is it the same during the day as well?

i had changed utorrent settings according to various online suggestions and had half open ports increased to 50. But that shouldnt matter anymore cause i formatted and installed winXp freshly yesterday. The problem is still there.
yes, the problem persists during daytime too.
i checked with 'speedtest.net'.according to them my download speed has decreased to
40kBps which used to be 200kBps.
neway, thanks for replying.any suggestions???

I would wait for essbebe to come and help you out... he has a very systematic approach for troubleshooting issues such as yours.

In the mean time please post this data :

SNR Margin (dB):
Attenuation (dB):
Output Power (dBm):
Attainable Rate (Kbps):
Rate (Kbps):

snr dlod = 8db
snr ulod = 11db
attenuation = 22.5 down, 11.5 up
output power = cant find
attainable rate> downstream data rate = 11246300, up.. = 861700
rate = ?
connected standard = bis
using bsnl provided nokia siemens modem c2110 model no. Vulcan BSP v0.01 / Vulcan CSP v0.01
Firmware Version V55.1.04.01
DSL Firmware Version E.37.9.32
Serial Number 00085CEB2AC2

this is general info... ask if u need something else.thanX for replyin..

ADMIN, please do check this thread also--
"http://www.indiabroadband.net/bsnl-broadband/10689-plz-help-bb-very-slow.html"
more people havin same prob in same region.
????????

@admin
Thanks. Hope I measure up to the task.
Got usual data snr/attn line speed mod etc as
suggested by you.
@evander_leopard Your PM.

attainable rate> downstream data rate = 11246300, up.. = 861700
rate = ?
connected standard = bis

Probably your MOD mode selected is ADSL2 +
1.If you can change it to GDMT ( your router classification may be different)
Attainable D/L rate will reduce and SNR may improve
Giving a stable connection.
SNR hig more than >10 db and ATTN < 30 to 40 db worst case. If ATTN is more , presumed you are far away from the Exchange. Confirm.
2. Check speed at same test site.
About torrents later. See "Broadband How to..... " thread here.
Try. feedback.

FOR REFERENCE ONLY : Beetel 110BX1 AIRTEL upto2 Mbps XP Sp2

Mode: ADSL2+ AnnexM EU-56
Type: Fast
Line Coding: Trellis On
Status: No Defect
Link Power State: L0

........................Downstream Upstream
SNR Margin (dB): 31.4 11.8
Attenuation (dB): 11.5 29.3
Output Power (dBm): -21.0 1.2
Attainable Rate (Kbps): 25864 2055
Rate (Kbps): 2063 519

http://www.indiabroadband.net/attach...-better-10.jpg

see the last four or five entries.
( Report only these data.
Rest please ignore for the present. No idea !)
Disable SRA
Standard as shown mbisauto
EC/FDM try FDM

ensure that all your telephones are connected after the splitter.. that could increase your SNR a bit..

BSNL BB speed drops very often. I am using BB in Kerala and do have this problem. However with the providers available locally i feel BSNL BB is much better

Originally Posted by essbebe

@admin
Thanks. Hope I measure up to the task.
Got usual data snr/attn line speed mod etc as
suggested by you.
@evander_leopard Your PM.

Probably your MOD mode selected is ADSL2 +
1.If you can change it to GDMT ( your router classification may be different)
Attainable D/L rate will reduce and SNR may improve
Giving a stable connection.
SNR hig more than >10 db and ATTN < 30 to 40 db worst case. If ATTN is more , presumed you are far away from the Exchange. Confirm.
2. Check speed at same test site.
About torrents later. See "Broadband How to..... " thread here.
Try. feedback.

FOR REFERENCE ONLY : Beetel 110BX1 AIRTEL upto2 Mbps XP Sp2

Mode: ADSL2+ AnnexM EU-56
Type: Fast
Line Coding: Trellis On
Status: No Defect
Link Power State: L0

........................Downstream Upstream
SNR Margin (dB): 31.4 11.8
Attenuation (dB): 11.5 29.3
Output Power (dBm): -21.0 1.2
Attainable Rate (Kbps): 25864 2055
Rate (Kbps): 2063 519



see the last four or five entries.
( Report only these data.
Rest please ignore for the present. No idea !)
Disable SRA
Standard as shown mbisauto
EC/FDM try FDM

hi essbebe please help i would like to change my plan from 500c+ to 750 unlimited in bsnl..

how much can i download with 256 unlimted in one month...i used to download lot with 2mbps during night free hours but morning limit is the problem....iam getting good speeds ,,but i do a lot of online gaming and the limit is not enoguh..

so will it be worhty changing to 256 unlimited in bsnl and will it be fast enough for online games.....also i want to know whether the connection will be stable....now iam getting a speed of 220 KBPS but the main reason is the usage limit in this plan....

iam a heavy downloader and want to know whether this 256 unlimited will meet up my requirements....please help waiting for your replies ...

thnx in advance ,,,u r doing a good job for all here ...

Hi
This is same here ,Got connection 4 months back.The download speed for both bittorrents and download accelerators used to be 250 KBps.But of late specially in this month of October the download do not rise abbe 130 KBps almost halved, I dont know if the festival season has got anything to with it.But this is the case.

He's not the only one: since the past four days something has gone terribly wrong with my connection. Before that, I used to download from Rapidshare or Megaupload at around 200 kbps (fluctuating between 180 to 220 kpbs), then suddenly now it has fallen to around 10 to 20 kbps. Utorrent starts off very slowly, with the speed increasing from about 50 kpbs at the beginning to finally 200 kbps (at times only) but after almost half an hour > so what is it doing, searching for seeds all this time?

Actually, I read a post by Essbebe and downloaded Connection Booster, and earlier I had a problem with the connecting - my connection would keep breaking for the first two minutes before becoming stable. I also changed from ADSL2+ with EC mode with Bitswap disabled to G.DMT and FDM mode with Bitswap enabled, and the connection seems to have become more stable, but I still can't download from Rapidshare. I've changed it back to ADSL2+. With Internet Download Manager I could get above 200 kpbs speeds, now even with it, I get only around 20 kbps. Yesterday in the evening I downloaded a file from RS and it downloaded at full speed, which set me thinking if BSNL is throttling the speeds during the free nighttime.

I am copying everything from the 192.168.1.1 page here:

Summary:
Model Name: MT880
Data Path: Interleave
DSP Version: D.57.2.17
Operation mode: ADSL2+
Output Power: 12.4 dB

ADSL Link Speed:
1021 Kbps (Up), and 10239 Kbps (Down) < in the G.DMT mode, the down speed was somewhere around 9000 kbps.
Previous TX and RX Rate: 0 kbps
SNR: 8.3 dB (Up), 7.5 dB (Down)
CRC - both zeros
Attenuation: 22.5 dB (Up), 44.0 dB (Down)
FEC - both zeros
HEC (ATM Layer) - both zeros

WAN Settings:
PVC Number: PVC-0
Wan Type: RFC2684Bridged
Connection Type: Pure Bridged
Encap.: LLC

DHCP: enabled
Starting IP: 192.168.1.2
Ending IP: 192.168.1.33

DNS Status: enabled
Primary DNS address: 218.248.240.208
Secondary DNS address: 218.248.240.135
(I hear DNS servers affect your browsing speed; is everything alright here?)

NAT: enabled
UPNP: disabled
VPN Pass-Through: both PPTP and IPSec enabled

Static Route: nothing filled up

Virtual Server: enabled

Special Applications is enabled, and has some stuff that I don't remember putting it there: Battle.net; Dialpad; ICU II; MSN Gaming Zone; PC-to-Phone; Quick Time 4.

Filters: IP Filters
Status: disabled; Action: allow

Firewall:
Black List Status: disabled
Use Attack Protection, and Use Dos Protection - both 'deny'
Max TCP and ICMP count: 100; Max Host Count: 30

And the mode: ADSL2+, FDM, Bitswap enabled.

If I've missed out on something here, please ask.

BSNL 500 C
yeah.....wats happening?????torrent speed came down to 130 kBps...........rapidshare down to 20 kBps max....pls help.........

Originally Posted by suvo

BSNL 500 C
yeah.....wats happening?????torrent speed came down to 130 kBps...........rapidshare down to 20 kBps max....pls help.........

So others are facing the same problem...

Even I am facing same problem in 500C. Tried contacting officers but they are out of my reach.

Things are completely messed up.

taday when i connect my bb i saw bb works correctly. my speed r back.
thanks all of u.

adv. happy dewali...

@aadi003
so ur problem solved..............dats great........i will check it tonight and post.........wat abt da others???????

hey i checked it now.........torrent speed went upto 161 kBps.....but since its not free time........i had to stop it.......but it took only 5 mins to reach that speed........i think its back......

I started Utorrent at about four o'clock, and I got about 140 kpbs speed, and this continued till about seven, even though the torrents were all well-seeded ones. Then all of a sudden after seven, the speed jumped to 220 kpbs and stayed that way till the end.

thamks for all ur replies guys. last sat my speed dropped to 20 kBps while dlodin. From sunday till now, i had no connection. But i m back online now, thats what counts. And speed has increased to 108kBps (according to speedtest.net).
thanks.
will post more when im back frm college today.
ya'll take care now.

@ essbebe

thanks for ur suggestions. Learned many things from em.

Anyway, bsnl provided me with a new port and all seems to be well now. They said my port was damaged/corrupt.

Even i hav the same problem...dropped ffrom 220-230Kbps to 180Kbps....wen i checked,the line downstream spped itself was reduced from 13200Kbps to 2044Kbps.......what Do u guys think,will it be alright in some days????

^ even I am facing the same.downstream rate reduced from 11200 kbps to 2044 kbps.My upload speed has been drastically reduced to only 48 kBps and download merely touches 140 kBps.

What is more painful if I upload torrents download speed reduces to 40 kBps.Already complained but Line is Ok according to them.

Im also having the same speed reduction problem...... My bandwidth reading never goes beyond 1.7 Mbps these days...........
How can we request for a new port???
Someone got their problem solved by getting a new port, I see.......

Originally Posted by hitler517

Im also having the same speed reduction problem...... My bandwidth reading never goes beyond 1.7 Mbps these days...........
How can we request for a new port???
Someone got their problem solved by getting a new port, I see.......

1.7Kbps is reasonably good.
instead of testing with speed test .net, try www.dataone.in speed test at the bottom of page, it would help you to know condition between your server and your modem.

I am still stuck at 70 KB/s

Talk to the Senior Divisional Engineer (SDE) and seek help.