"Loss of signal" failures? - Issue ?
I was wondering if a GEA test might reveal anything about why I'm suddenly seeing 'LOS Failures' on my fibre connection - 4 in the last 24 hours so far I believe.
I've only had fibre for a fairly short period and the connection started off being 66/14 with a considerable number of errors (e.g. ES & FECS) on both up & downstream.
Inexplicably the downstream errors simply stopped after approx. 3 weeks and since then after the SNR margin was dropped from 6dB to 3dB - presumably by DLM is now 70/14 - which isn't too bad at all - although the upstream is only just meeting the BT estimate for the line and the errors continue on that - see the attachment for details.
I'm just concerned over the signal loss and where it might be being caused - if it's my side I'll go through the wiring again but I believe it's pretty clean to start with (no extensions, etc, single filtered master socket). I was hoping the GEA test might reveal this?
Any suggestions gratefully received!
Re: "Loss of signal" failures? - Issue ?
Our tests aren't picking anything up.
|Test Outcome Code||GTC_FTTC_SERVICE_0003|
|Description||No problem found, OAM test is not currently supported on this line.|
|Main Fault Location||OK|
|Sync Status||In Sync|
|Downstream Speed||66.7 Mbps|
|Upstream Speed||14.1 Mbps|
|Fault Report Advised||N|
|NTE Power Status||PowerOn|
|Voice Line Test Result||Pass|
|Bridge Tap||Not Detected|
|Radio Frequency Ingress||Not Detected|
|Repetitive Electrical Impulse Noise||Not Detected|
|Cross Talk||Not Detected|
|Estimated Line Length In Metres||721.1|
|Upstream Rate Assessment||Very Good|
|Downstream Rate Assessment||Very Good|
|Interference Pattern||Not Detected|
|Service Impact||No Impact Observed|
|Home Wiring Problem||Not Detected|
|Downstream Policing Discard Rate||0.0|
|Customer Traffic Level||Upstream and Downstream Traffic Detected|
|Current 15Min Bin Retrains||0|
|Last 15Min Bin Retrains||0|
|Profile Name||0.128M-80M Downstream 4dB, Retransmission High - 0.128M-20M Upstream, Error Protection Off|
|Down Stream Line Rate||66.6 Mbps||71.1 Mbps||69.0 Mbps|
|Up Stream Line Rate||13.8 Mbps||14.8 Mbps||14.0 Mbps|
|Up Time||863.0 Sec||900.0 Sec||899.7 Sec|
|Current and Last 15 Minute Bin Performance|
|Parameters||Last Traffic Count(Upto 15 mins)||Current Traffic Count(Upto 15 mins)|
|Start Time Stamp||2017-08-30T15:54:04Z||2017-08-30T16:09:04Z|
|Ingress Code Violation||0||0|
|Egress Code Violation||0||0|
|Severely Errored Seconds||0||0|
Whilst your upstream is marginally below your estimates [by 0.1mbps] I doubt we'd be able to raise a fault based on that. There have been a few drops in your connection over recent days though.
Let us know how your internal checks go.
| Anoush Mortazavi|
Plusnet Help Team