Your PTCL DSL Connection is slow? I know it usually is but you have to identify the reason. It could simply be bad wiring in your home, some rust on your connect in PTCL DP or something else from their end but you should always start with checking your PTCL DSL Line Statistics i.e. (1) SN Margin or SNR Margin (2) Line Attenuation.
- Check on the backside of your PTCL provided Modem/Router combo for its IP address, Admin Username & Password.
- Visit the IP address from any Browser on your Computer usually 192.168.1.1 if you have not changed it yourself.
- Enter the Username/Password as mentioned on the back sticker of your device.
- Click Status > Statistics and you will see the details:
- SNR Margin and Line Attenuation will show now.
Please note that the values in this example are shown as 0.1 dB which will be reflected in your stats. If it this then read SNR Margin = 344 as 34.4 and Line Attenuation = 88 as 8.8. Rare but perfect values for PTCL DSL service thanks to a Fiber backbone.
Check the Downstream SNR Margin and Line Attenuation, comparing with the values below sourced from DSLReports.com:
SN Margin (AKA Signal to Noise Margin or Signal to Noise Ratio)
Relative strength of the DSL signal to Noise ratio. 6dB is generally the lowest dB manufactures specify in order for the modem to be able to synch. In some instances interleaving can help raise the noise margin to an acceptable level. Generally speaking, as overall bandwidth increases, your signal to noise ratio decreases. So a customer that upgrades from 1.5 to 6.0 service will typically see a corresponding decrease in the signal to noise ratio. The higher the number the better for this measurement.
- 6dB or below is bad and will experience no synch or intermittent synch problems
- 7dB-10dB is fair but does not leave much room for variances in conditions
- 11dB-20dB is good with no synch problems
- 20dB-28dB is excellent
- 29dB or above is outstanding
Measure of how much the signal has degraded between the DSLAM and the modem. Maximum signal loss recommendation is usually about 60dB. One of the biggest factors affecting line attenuation is distance from the DSLAM. Generally speaking, bigger distances mean higher attenuation. The lower the dB the better for this measurement.
- 20dB and below is outstanding
- 20dB-30dB is excellent
- 30dB-40dB is very good
- 40dB-50dB is good
- 50dB-60dB is poor and may experience connectivity issues
- 60dB or above is bad and will experience connectivity issues
What to do if the values are not ideal?
- Make sure you are using a Filter for your Phone line because that is the leading cause of deteriorating Line Stats.
- Make sure the wire coming from PTCL DP to your home and onwards to your Phone is not damaged and should ideally be without any patches or cuts in between. The ideal setup would be PTCL DP > Modem, no junctions in between.
- Call 1218 and file complaint for bad line, someone will be sent to check the issue.
- If that does not work, find the concerned person in your local PTCL Exchange and deal accordingly.
- If all else fails and you do not have any alternative ISP in your neighborhood to change to then file a complaint with PTA.
Some Modems/Routers will have the Line Stats under Maintenance or some other tab. Let me know your Modem/Router model number if you are having trouble finding them.
This page was last updated on: 30-June-2018