Slow after upgrade

[Red Plumstead]

The more I deal with Telkom the more disapointed I am getting.
Upgraded from 2Meg line to 4Meg, but my line is much slower. They state everything is OK and close my fault request numerous times. Have reset my router and borrowed a friends upgraded router and Laptop same results. Replaced about everything in the house.

Ping: 8ms
Download: 1.15Mbps
Upload: 0.25Mbps


This was the best speed I ever got.

 

[Cameronkk]

Check attenuation & SNR is within acceptable levels.

SNR or Signal to Noise Ratio:
Describes the ratio of usable data-signals on your line. You can associate the “signal”
with the data travelling across your ADSL-line and the “noise” as the unwanted
interference affecting the signal. The higher the number the better for this
measurement. In some instances interleaving can help raise the noise margin to an acceptable level.

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 little or no synch problems
20dB-28dB is excellent
29dB or above is outstanding

Attenuation:
Is the reduction in signal strength on your phone line. In ADSL this may be reported
as “loop loss” and is the natural deterioration of the ADSL signal over distance from
the exchange. Attenuation is normally directly linked to the length of your line.
Copper is traditionally used in the local loop and the higher gauge of copper will
give the best signal, however some lines may have some aluminium or aluminium
joints on the line which will increase resistance… as will oxidisation of joints.
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

The standard signal attenuation spread for a given speed is somewhere in the
region of 25-30dB for ADSL1 speeds.

The following guide (distance vs. attenuation vs speed) gives you an guestimate what you can achieve:

<1km should be 23-24Mbit
1.0km = 13.81dB = 23Mbit
1.5km = 20.7dB = 21Mbit
2.0km = 27.6dB = 18Mbit
2.5km = 34.5dB = 13Mbit
3.0km = 41.4dB = 8Mbit
3.5km = 48.3dB = 6Mbit
4.0km = 56dB = 4Mbit
4.5km = 62.1dB = 3Mbit
5.0km = 69dB = 2Mbit
> 5.0km (not much hope)

 

[Red Plumstead]

Check attenuation & SNR is within acceptable levels.

SNR or Signal to Noise Ratio:
Describes the ratio of usable data-signals on your line. You can associate the “signal”
with the data travelling across your ADSL-line and the “noise” as the unwanted
interference affecting the signal. The higher the number the better for this
measurement. In some instances interleaving can help raise the noise margin to an acceptable level.

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 little or no synch problems
20dB-28dB is excellent
29dB or above is outstanding

Attenuation:
Is the reduction in signal strength on your phone line. In ADSL this may be reported
as “loop loss” and is the natural deterioration of the ADSL signal over distance from
the exchange. Attenuation is normally directly linked to the length of your line.
Copper is traditionally used in the local loop and the higher gauge of copper will
give the best signal, however some lines may have some aluminium or aluminium
joints on the line which will increase resistance… as will oxidisation of joints.
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

The standard signal attenuation spread for a given speed is somewhere in the
region of 25-30dB for ADSL1 speeds.

The following guide (distance vs. attenuation vs speed) gives you an guestimate what you can achieve:

<1km should be 23-24Mbit
1.0km = 13.81dB = 23Mbit
1.5km = 20.7dB = 21Mbit
2.0km = 27.6dB = 18Mbit
2.5km = 34.5dB = 13Mbit
3.0km = 41.4dB = 8Mbit
3.5km = 48.3dB = 6Mbit
4.0km = 56dB = 4Mbit
4.5km = 62.1dB = 3Mbit
5.0km = 69dB = 2Mbit
> 5.0km (not much hope)

Thanks. How do I test the attenuation and/or SNR levels.

 

[Cameronkk]

Your router will report these numbers somewhere you will just have to look for them or google where ur router hides them

 

[Red Plumstead]

Found some of it it on my router. But now my speed is suddenly up.

Ping: 35ms
Download: 3.48Mbps
Upload: 0.34Mbps

 

[Pulserider]

I must say I sit in the same boat as you are. Still struggling with Telkom on this.

 

[Red Plumstead]

It looks like at least 3 of 4 evenings have no download/upload in a row. Works then for one evening and then it repeat itself.
Ping: 434ms
Download: 0.31Mbps
Upload: 0.04Mbps
That is on a 4M line. Reported it and then Telkom closes the fault.

 

[elf_lord_ZC5]

So I am not the only one who upgraded from 2M to 4M and regrets it. Am seriously considering going back to 2M. Do not, get a speed test over 3.2 M, yet I get downloads of 4.5 with Internet Download Manager, Ping/Latency is all over the place. Seriously Telkom, do you consider this an upgrade, never mind quality service, and then I am under 300 M from DSLAM/MSAN.

 

[Red Plumstead]

So I am not the only one who upgraded from 2M to 4M and regrets it. Am seriously considering going back to 2M. Do not, get a speed test over 3.2 M, yet I get downloads of 4.5 with Internet Download Manager, Ping/Latency is all over the place. Seriously Telkom, do you consider this an upgrade, never mind quality service, and then I am under 300 M from DSLAM/MSAN.

Never mind downgrade, I very active looking at other service provider.