Terrible Line Stats!

sammy_leung · 13 Oct 2009 at 19:35

Hi all,

Line stats as follows 30mins after reboot from my 3com 3CRWDR101A-75 router.

Data Rate
Up Stream 895 (Kbps.)
Down Stream 2561 (Kbps.)

Operation Data Upstream Downstream
Noise Margin 6 dB 6 dB
Attenuation 77 dB 60 dB

Defect Indication
Indicator Name Near End Indicator Far End Indicator
Fast Path FEC Correction 0 0
Interleaved Path FEC Correction 0 55136
Fast Path CRC Error 24 0
Interleaved Path CRC Error 0 2
Loss of Signal Defect 0 ---
Fast Path HEC Error 13 0
Interleaved Path HEC Error 0 0

On the standard O2 LLU package... I'm about 2.4km straight line from the exchange according to samknows.
Have checked the internal wiring following guides, have tried the master socket and have a BT iPlate which made no difference.

Just wondering if there is anything me or O2 can do to improve speeds?
Thanks

Phemo · 13 Oct 2009 at 19:45

With an attenuation that high those line stats are actually great. You may be 2.4km from your exchange in a straight line but attenuation like that suggests your line's physical cable length is at least double that.

In short no, nothing can be done.

PistolPete · 13 Oct 2009 at 19:47

Move closer to an exchange

Seriously tho, you have downstream losses of 60dB. That's the problem, but a 2.4Km straight line path is likely to be much more. I was 1.6Km straight line with a 4.56Km actual line. I had 54dB loss on that and I ended up with 3.5Mb/s.

It sounds like you've done all the sensible things, only thing left is to try different routers that are known to work well on long lines.

sammy_leung · 13 Oct 2009 at 19:59

Blah... I guess having a stable connection on this line is already a miracle! :rolleyes:

The 3com router is pretty good already IMO as I've tried several other brands before (Netgear, Belkin, O2) and they just keep dropping connection and losing sync.

But thanks for the input anyway

tolien · 13 Oct 2009 at 20:17

It looks like there's some kind of fault. There's no way your upstream attenuation should be 60dB.
Does your voice service work fine?

sammy_leung · 13 Oct 2009 at 20:35

My voice services are completely fine, I've never had any problems with it.

Ryan111 · 13 Oct 2009 at 22:46

77 and 60db!!! Your lucky to get a connection!

One of my mates just gets 1.1meg down and 0.35 up of a 65db line!!