Strange Happening

**roehrle** · 03-06-2009 01:55 PM

Then the next question is ..
Which one is better??
I don't think that is something I can change by myself

**burris** · 03-06-2009 02:00 PM

Originally Posted by roehrle

Then the next question is ..
Which one is better??
I don't think that is something I can change by myself

No you can't.

If you are getting a decent, reliable connection, maybe let it go.
Otherwise, you need to get an upper level tech to do some line testing.

Better yet, especially if they don't charge, see if you can get a tech out to measure from your house. They talk directly to the NOC and can try different changes on the fly to see what works best.
That is if they care..

**roehrle** · 03-06-2009 02:28 PM

I had all kinds of problems when I first got DSL and then more when i got VW. They ran a new line from my house to the junction box. and then another line from that junction box. They had to replace something in that box because of corrosion. The lines were all over 40 years old. That seemed to fix the multiple problems I was having. As I said before I had my own special tech that was working with me for days. Even had his phone number so I could call him.

**NY Tel Guy** · 03-06-2009 03:29 PM

Originally Posted by roehrle

Transceiver Revision: 7.2.3.0 Vendor ID Code: 4 Line Mode: G.DMT Mode Data Path: Interleaved Transceiver Information Downstream Path Upstream Path DSL Speed (Kbits/Sec) 1184 448 Margin (dB) 11.5 21.0 Line Attenuation (dB) 57.0 31.5 Transmit Power (dBm) 6.0 11.8

Ok here's the deal:

1. Verizon provisions all DSL as Interleaved because it lessens tech support calls for them.
2. Line Attenuation: 57 means you are at the outer limits of higher speed DSL
3. Transmit power: 31 is almost off the scale but is related to your distance from the Central Office
4. DSL Speed: is not synced at the max speed probably because of your "less-than-perfect line conditions.

Can you go to the modem and look again and let me know which of the stats are your Margin readings? Is it the 6.0 / 11.8 numbers? Or is it the 11.5 / 21.0?

That would make a big difference.

A noise margin of 6.0 is always on the verge of losing sync because of excess line noise caused by many, many things.

Before we go any further - get me those readings.

I have a friend who works for Verizon who can poll your line LIVE and look at the actual versus capacity of your line and make some adjustments etc. if need be but we are not at that stage yet.

**roehrle** · 03-06-2009 07:09 PM

I not sure what you are asking for me to report
The downstream was 14.5 db
The Upstream was 21.0 db
Is that the info you wanted ??

**NY Tel Guy** · 03-06-2009 07:12 PM

Originally Posted by roehrle

I not sure what you are asking for me to report
The downstream was 14.5 db
The Upstream was 21.0 db
Is that the info you wanted ??

Well if those are your noise margin readings, those are excellent but that would not explain your speed being slower than the speed tier you are supposed to be subscribed to.

**roehrle** · 03-06-2009 07:17 PM

So what are the numbers we are looking for??
A higher db or lower with the margin ?
I'm surprised that something is looking good on my set-up

**NY Tel Guy** · 03-06-2009 07:33 PM

Originally Posted by roehrle

So what are the numbers we are looking for??
A higher db or lower with the margin ?
I'm surprised that something is looking good on my set-up

Generally speaking, noise margin numbers are better the higher they are. The downstream is usually lower than the upstream but yours are showing a good range. The modem constantly adjusts the speed relative to the line quality so as to prevent dropouts (disconnects).
If you shut the modem off, turn it back on - your speed will usually increase because it tries to sync at the speed closest to what you are provisioned at.
What speed tier are you supposed to be on?

BTW - your noise margin numbers are absolutely fine.