Increasing attenuation, decreasing noise margin

[Blackhand]

So about a month ago I noticed the stats in my router were worse than usual. I haven't had any connectivity problems... yet, but I'm concerned that I will in another month or two.

For the past... 5 years? I've had a line attenuation of 28db and with 4mb a noise margin of 24db. A month ago I took a look at my router stats and noticed my line attenuation had increased to 30db and my noise margin had decreased to 20db. I wasn't too worried at first, but last night I checked again and the line attenuation had risen again to 31db and the noise margin decreased to 18.6db, so something is slowly but surely going wrong here, unless my house and the exchange are sneakily moving further apart!

Anyone seen anything like this? As I said I don't have any connectivity problems... yet, but I'd like to get a head start on any kind of impending failure, knowing how it would probably take months to get resolved once broken.

 

[Optimal01]

Try use DT Tool to adjust SNR margin

 

[Pada]

The line attenuation would increase if the connectors are corroding.

If the signal loss on the line (aka line attenuation) is going up, then your signal quality (or signal to noise ratio) would naturally go down.

With those kind of SNR and line attenuation values, I won't worry at this moment if your line is going to stay at synchronized at 4Mbps.

 

[fragtion]

Yeah, nothing to worry about there yet. 31dB attennuation, especially with 20~ dB SNR, isn't bad. I've got 35 Attennuation and 12 dB SNR and my line handles 4Mbps easily and max attainable rate is around 10Mbps

 

[PDonut]

Also been having issues with a line that was fine for like 3 years and now is not syncing at 4 meg anymore and dropping connections every now and then. Router doesnt show line stats so cant see the story there. But ye, its possible you might have a problem a little down the line. Problem with these gradual failures is that its difficult to find the problem and then also get Telkom to try fix it - unless it stops working alltogether.
So unfortunatley still trying to find out what the problem is despite a techie having come out. He changed some surge arrestors and it looked good for about an hour but then dropped the sync speed again....

 

[4cer]

whats the DT tool addy to download ?