That's quite probable for my situation.

If I resync with a forced target SNRM of 57% of the MSAN target SNRM, the actually SNRM achieved will be around 3.7dB to 3.8dB.
After a couple of days, that could be anywhere between 2.1dB and 3.1dB at it's most stable. That would clearly suggest the line gets noisier after a sync.

I wonder what's happened to induce enough extra noise to chop 1000kbps from my sync speed... A couple more houses are now up and being lived in on the development, I guess that could contribute.

Paul

Edited by deleted (Wed 03-Oct-12 13:56:03)

I've just checked my support ticket I had opened with Vivaciti and the representative stated that on 27th September (when they last contacted me), my sync was showing, at their end, as 12537Kbps. However, my router, for the last 3 or 4 months, has shown a maximum sync of around 11020Kbps.

Has anyone else experienced inaccurate sync rates displayed on their Billion 7800N?

Is there any tool I can use to verify my actual sync rate?

have a version of DMT that works with the 7800N however, I'm sure what that's reported has matched the Billion recently...

Paul

Hi,
What are your full line stats and what do you see from a speedtest?

Hi,

Line stats currently are:

Upstream 1021
Downstream 10929
SNR Margin(Upstream) 6.8
SNR Margin(Downstream) 2.4
Line Attenuation(Upstream) 22.2
Line Attenuation(Downstream) 39.5

Just carried out a speedtest (speedtest.net) and the results are:

Down Up Ping
9.92Mb/s 0.8Mb/s 45ms
10.01Mb/s 0.82Mb/s 41ms
9.48Mb/s 0.82Mb/s 41ms
Lancaster
Down Up Ping
9.57Mb/s 0.82Mb/s 35ms
9.71Mb/s 0.81Mb/s 26ms
9.63Mb/s 0.82Mb/s 35ms
London

All taken from my micro server connected to the router via 1m of cat5e cable and using the latest version of Firefox.

Thanks,

Paul

Edited by deleted (Fri 02-Nov-12 10:02:16)

Have you tried a different router to rule out if it is the router mis-reporting as one of your speedtests show 10.1 and your router is only reporting a connection speed of 10.9 and that speed seems a little fast for the connection taking into account the tcp overheads etc.

Hi,

Yes, my first thought was to try another router and I'm looking into that as I type.

I'd also agree that the actual throughput of my line doesn't quite tally with the reported sync rate. I've measure actual throughput downloading large files from a good source and it comes in at around 10100Kb/s to 10250Kb/s. That's about 93% of the reported sync rate which is rather exceptional.

Thanks for you responding by the way.

Paul