10:24 PM
Sushil Girdher
Noise is the culprit!
First of all you need to understand that BSNL DataOne services are working on ADSL technology and even slight noise in the telephone line can severely affect your quality of connection. Your modem comes with various stats and that is more than enough to identify the noise.
Log-in to your modem’s admin panel and click the summary link. [Type in your browser 192.168.1.1 and use user name / pass as admin/admin]You will see similar screen there.
As ADSL technology uses two different spectrum of frequencies for upload and download, you will see two different stats for upstream and downstream.
Here are the explanations of the different terms:
ADSL Link Speed:The speed at which you are connected to BSNL servers. This does not necessarily be same as your allocated speed.
SNR: Or Signal-to-Noise ratio. Better signal and less noise implies high SNR.
Attenuation:Decrease in signal strength due to scattering, resistance and other natural effects. Higher attenuation means lesser quality of signal.
The noise level can be clearly understood by checking SNR. You should be having average SNRs around 30. Lesser means you have some noise in your telephone line and you should contact BSNL to get the noise cleared from the telephone line.
Normally noise appears when there are joints or when the cable is exposed to environment. Rainy season brings rust to exposed parts and result in noise.
Noise can also happen if you have a faulty telephone. Faulty telephones can interrupt your signals and result in noise. It can also be the result of ADSL splitter being faulty.
Next thing to check is the Attenuation. Your average attenuation should be around 15. Higher attenuation means signal is loosing strength. (Possibly due to longer distance (Resistance) from telephone exchange). Lower quality of signal means, frequent slow down and interruption.
Once you are satisfied with SNR / Attenuation values, let’s go to the WAN settings.
First of all you need to understand that BSNL DataOne services are working on ADSL technology and even slight noise in the telephone line can severely affect your quality of connection. Your modem comes with various stats and that is more than enough to identify the noise.
Log-in to your modem’s admin panel and click the summary link. [Type in your browser 192.168.1.1 and use user name / pass as admin/admin]You will see similar screen there.
As ADSL technology uses two different spectrum of frequencies for upload and download, you will see two different stats for upstream and downstream.
Here are the explanations of the different terms:
ADSL Link Speed:The speed at which you are connected to BSNL servers. This does not necessarily be same as your allocated speed.
SNR: Or Signal-to-Noise ratio. Better signal and less noise implies high SNR.
Attenuation:Decrease in signal strength due to scattering, resistance and other natural effects. Higher attenuation means lesser quality of signal.
The noise level can be clearly understood by checking SNR. You should be having average SNRs around 30. Lesser means you have some noise in your telephone line and you should contact BSNL to get the noise cleared from the telephone line.
Normally noise appears when there are joints or when the cable is exposed to environment. Rainy season brings rust to exposed parts and result in noise.
Noise can also happen if you have a faulty telephone. Faulty telephones can interrupt your signals and result in noise. It can also be the result of ADSL splitter being faulty.
Next thing to check is the Attenuation. Your average attenuation should be around 15. Higher attenuation means signal is loosing strength. (Possibly due to longer distance (Resistance) from telephone exchange). Lower quality of signal means, frequent slow down and interruption.
Once you are satisfied with SNR / Attenuation values, let’s go to the WAN settings.
Let the settings be same as there except for DNS. If your DNS is in disabled state, enable it and move to DNS link.
Insert the following values as in this screen shot. We will be using the DNS service from OpenDNS; which is found to be better than BSNL’s own DNS servers.After doing this, you will see improvement in your connection speed.
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