ToolBox -

Open up your web browser (eg. Internet explorer, Firefox, Chrome, Safari)

Click in your browsers address bar and enter the address of your routers configuration page, by default on Netgear equipment this is usually or for earlier models.

You should now be presented with a login dialogue box. Enter your username and password. The defaults are (case sensitive)

User Name: admin
Password: Either admin or password

Once you have successfully logged, you will be presented with this webpage or something similar:

Image showing the generic Netgear interface, yours could be a little different depending on your router model

At the bottom of the Router Status section, there are 2 buttons. Click the Show Statistics button. You will now be looking at this window:

Image showing Netgear line statistics page

The important bits are in the lower box – Connection Speed; Line Attenuation; and Noise Margin. If requested, these are the line stats that you should send to our support staff.

What do these figures mean?

SN Margin (AKA Signal to Noise Margin or Signal to Noise Ratio)
SNR is the Relative strength of the DSL signal to Noise ratio. In other words, the volume difference between the background hiss and the DSL signal. On ADSL, the router and exchange will attempt to sync at about 14.5db. Numbers around this are okay, but the lower it goes the worse your signal will be. ADSL2+ uses different tones, and is thus able to sync much lower – your router and the exchange will attempt to hit 6db.

Line Attenuation
Measure of how much the signal has degraded between the ISAM and the modem. Maximum signal loss recommendation is usually about 60dB. The lower the dB the better for this measurement.

  • 20dB and below is outstanding – very close to the echange.
  • 20dB-30dB is excellent
  • 30dB-40dB is very good – an average of 3Km from the exchange. Maximum for ADSL2+
  • 40dB-50dB is good – an average of 4.8Km from exchange. Would expect to be on READSL
  • 50dB-60dB is poor and you may experience connectivity issues
  • 60dB or above is bad and you will experience connectivity issues

How can I improve these figures?

Unfortunately, these figures are ultimately dependent on a number of factors including distance from the ISAM/Exchange, the condition of the cabling, the internal wiring within your premises and sometimes other factors such as electrical noise etc.