10Mbps line loses sync during the evenings

[that_other_guy]

Hi,

I recently upgraded from a 2Mbps to a 10Mbps ADSL line.
I found that during the evenings mostly, the line loses sync and the internet disconnects. This only lasts roughly 30 seconds to 1 minute before connection is re-established, but it sometimes happens multiple times in one evening.

Could it be attributed to not having a static IP? Strange as I never encountered this issue on the 2Mbps line. Or what else could it be?

 

[PsYTraNc3]

Ask them to drop your line speed to 6mb just to test for a few days.
It's probably your exchange that able to handle 10mb very well.

 

[Lydon]

Who is your ISP? We're on AfriHost 10MB Business and this happens at night too. It disconnects for 30 seconds to a 1 minute a couple of times. Extremely annoying when you're gaming.

 

[Joker]

Check your router settings and post your SNR values, the higher your speed the more sensitive your connection is to noise.

 

[that_other_guy]

Who is your ISP? We're on AfriHost 10MB Business and this happens at night too. It disconnects for 30 seconds to a 1 minute a couple of times. Extremely annoying when you're gaming.

I am also with Afrihost on 10Mbps Business. Was previously on the 2Mbps Home Uncapped. Download speed usually takes a dip for a while before going back to normal once it resumes.

 

[that_other_guy]

Check your router settings and post your SNR values, the higher your speed the more sensitive your connection is to noise.

I will post these values as soon as I get home. If this is the case would dropping it to say 8 or 6Mbps fix this? Don't these speeds still run on a 10Mbps line?

 

[Joker]

I will post these values as soon as I get home. If this is the case would dropping it to say 8 or 6Mbps fix this? Don't these speeds still run on a 10Mbps line?

You'll want your SNR values to be above 7, anything lower and you'll have stability issues. You can either get telkom out to check your line, or move it down to 6/8mb and see if it improves.

Yeah you'll still pay the full price for a 10mb line, although some ISP's do offer 8mb packages for data at least.

 

[that_other_guy]

You'll want your SNR values to be above 7, anything lower and you'll have stability issues. You can either get telkom out to check your line, or move it down to 6/8mb and see if it improves.

Yeah you'll still pay the full price for a 10mb line, although some ISP's do offer 8mb packages for data at least.

Just checked router settings...there is no explicit SNR value. Though the documentation says that the Noise Margin is the SNR. I have the following:

Line Attenuation: 27.5dB (downstream) 14.6dB (upstream)

Noise Margin: 13.1dB (downstream) 11.8db (upstream)

 

[cavedog]

Just checked router settings...there is no explicit SNR value. Though the documentation says that the Noise Margin is the SNR. I have the following:

Line Attenuation: 27.5dB (downstream) 14.6dB (upstream)

Noise Margin: 13.1dB (downstream) 11.8db (upstream)

With those stats your line should not drop but you have a line fault though. Your SNR is way too low for your attenuation. This could be old copper you are using,bad pots filter,bad connections along the line to the dslam.

You can try logging a fault and see if the technician will fix it for you.

 

[that_other_guy]

With those stats your line should not drop but you have a line fault though. Your SNR is way too low for your attenuation. This could be old copper you are using,bad pots filter,bad connections along the line to the dslam.

You can try logging a fault and see if the technician will fix it for you.

Thanks. I will try to log a fault tomorrow and get it sorted.

 

[DeatheCore]

With those stats your line should not drop but you have a line fault though. Your SNR is way too low for your attenuation. This could be old copper you are using,bad pots filter,bad connections along the line to the dslam.

You can try logging a fault and see if the technician will fix it for you.

I don't agree with this at all. Lower attenuation does not necessarily mean higher SNR, especially on 10Mbps ADSL. I know many people with stable 10Mbps sitting between 10 and 13dB SNR.

Anything above 10dB should be quite resistant to fluctuation of noise. There are probably other outside factors involved.

I personally have a problem with my line whereby noise increases after 6PM causing my SNR to drop from 10 to 7 or 8dB or sometimes even lower. Telkom could not trace the fault as they claimed it would be too difficult to pinpoint...

 

[cavedog]

I don't agree with this at all. Lower attenuation does not necessarily mean higher SNR, especially on 10Mbps ADSL. I know many people with stable 10Mbps sitting between 10 and 13dB SNR.

Anything above 10dB should be quite resistant to fluctuation of noise. There are probably other outside factors involved.

I personally have a problem with my line whereby noise increases after 6PM causing my SNR to drop from 10 to 7 or 8dB or sometimes even lower. Telkom could not trace the fault as they claimed it would be too difficult to pinpoint...

Of Course it does. Lower attenuation does not mean that SNR WILL go up. There should be a ratio somewhere what SNR should be +- in relation to attenuation values.

If you have 8dB attenuation you can basically spit on the dslam so if you have a SNR of anything less than 25dB you have a line fault.

Use my stats as reference.

I sync @ 10Mbps with a attenuation of 40dB and a SNR of 10dB. So I'm quite further than him from the exchange yet the difference in SNR is only 2dB..... I don't have any problems with my line at all. Surely that must mean a line fault for the OP?

Whether it can be repaired or whether it is because of factors outside of Telkom's control, the stats still suggest that those noise values are not what they are supposed to be.

 

[juBa]

Hi,

I recently upgraded from a 2Mbps to a 10Mbps ADSL line.
I found that during the evenings mostly, the line loses sync and the internet disconnects. This only lasts roughly 30 seconds to 1 minute before connection is re-established, but it sometimes happens multiple times in one evening.

Could it be attributed to not having a static IP? Strange as I never encountered this issue on the 2Mbps line. Or what else could it be?

Exact same thing happens to me as well. Every night between 10 and 11:30 it goes off for 30s and then it's normal. It's extremely irritating when you jamming online especially for LoL

 

[DeatheCore]

Of Course it does. Lower attenuation does not mean that SNR WILL go up. There should be a ratio somewhere what SNR should be +- in relation to attenuation values.

If you have 8dB attenuation you can basically spit on the dslam so if you have a SNR of anything less than 25dB you have a line fault.

Use my stats as reference.

I sync @ 10Mbps with a attenuation of 40dB and a SNR of 10dB. So I'm quite further than him from the exchange yet the difference in SNR is only 2dB..... I don't have any problems with my line at all. Surely that must mean a line fault for the OP?

Whether it can be repaired or whether it is because of factors outside of Telkom's control, the stats still suggest that those noise values are not what they are supposed to be.

You are reinforcing what I was trying to say - OP obviously lives closer to the exchange hence his 27.5dB attenuation, but that does not mean he SHOULD get a better SNR than 13dB, especially at 10Mbps.

Your SNR is 10dB @ 40dB attenuation, and I've seen many people @10Mbps with mid 20's attenuation with SNR also around 10-15dB. Many factors influence attenuation.

However, the routine increase in noise (loss of SNR) in the evenings does indeed point to a line fault somewhere, as with my line.

 

[element1]

Exact same thing happens to me as well. Every night between 10 and 11:30 it goes off for 30s and then it's normal. It's extremely irritating when you jamming online especially for LoL

Happens to me too. Exactly 1:15am, everyday...