Can anything be done to reduce errors?

thenewoc · 21 Jul 2013 at 10:33

Hi

I've recently moved into a new build property and switched from mobile broadband to adsl with Plusnet. I was a bit disappointed with the speeds of around 4.5 Mbits down speed but knew I only had the router plugged into an extension socket. After further research I discovered I had an Openreach external master socket so I've now switched my first extension socket to an nte5 master socket and fitted a vdsl interstitial faceplate. I'm now getting just over 9 Mbits down speed but I notice I have quite a lot of error info in the router stats. Is this to be expected or can something be done to improve things? Bit rusty with adsl as years since I've had it so appreciate any input. I'm about 3/4 mile from the exchange.

Before:

System uptime: 0 days, 16:30:55
Bandwidth (Up/Down) (kbps): 448 / 4.471
Line attentuation (Up/Down) (dB): 23,9 / 42,0
SN Margin (Up/Down) (dB): 16,9 / 8,6
Loss of Framing (Local/Remote): 0 / 0
Loss of Signal (Local/Remote): 0 / 0
Loss of Power (Local/Remote): 0 / 0
Loss of Link (Remote): -
Errors Seconds (Local/Remote): 26.570 / 0
FEC Errors (Up/Down): 0 / 0
CRC Errors (Up/Down): 1 / 4.563
HEC Errors (Up/Down): 0 / 10.841

After:

System uptime: 0 days, 16:59:44
Bandwidth (Up/Down) (kbps): 448 / 9.195
Line attentuation (Up/Down) (dB): 24,1 / 43,0
SN Margin (Up/Down) (dB): 17,4 / 5,0
Loss of Framing (Local/Remote): 9 / 0
Loss of Signal (Local/Remote): 1 / 0
Loss of Power (Local/Remote): 0 / 0
Loss of Link (Remote): -
Errors Seconds (Local/Remote): 1.238 / 9
FEC Errors (Up/Down): 0 / 0
CRC Errors (Up/Down): 244 / 1.725
HEC Errors (Up/Down): 91 / 5.383

Locky · 21 Jul 2013 at 10:45

1725 CRC errors over the space of 17 hours isn't bad at all, if the error rate becomes really bad DLM will turn on interleave to correct the errors and these will be shown as FEC errors.

Loss of framing and loss of signal will be what I would be concerned about, was you tinkering during this period to cause these?

thenewoc · 21 Jul 2013 at 10:59

I've had the power off whilst sorting out other things in the house but I think this would have reset the stats when the router powered back on. Maybe I should check back inside the xnte as the internal wiring was terminated with the bare ends pushed into the holes and maybe it could be pushed in more. I removed one cable from there as it had been run back to there as the beginning of a separate extension run for Sky.

thenewoc · 21 Jul 2013 at 11:01

I also removed the bell wire whilst I was in the xnte.

Locky · 21 Jul 2013 at 11:03

If you could provide pictures on your wiring and config, I would be able to advise a bit better and make some recommendations for you.

thenewoc · 21 Jul 2013 at 11:10

Ok thanks I'll do some pics later on. The only other thing I can think of is that the router is resting on the top of the power adapter at present due to a piece of furniture being moved and I've not got around to mounting the router on the wall yet. Just wondered if the router could be susceptible to EMI?

thenewoc · 21 Jul 2013 at 16:08

Here's the pics of the current set up, using the first extension, the xnte is just outside the front door so the router is fairly close to the service coming into the property. Once I have the router mounted on the wall I was going to look at getting a shorter RJ11 cable.

MissChief · 21 Jul 2013 at 16:27

That all looks fine to me. A little untidy but the wires go where they should.

thenewoc · 21 Jul 2013 at 18:27

Do you mean it all looks untidy or just the bit in the xnte? I could twist the unused pairs together and loop them out of the way like in the internal socket. It was even worse when the other cable and pairs for the additional extension that ran around the outside of the house and into the lounge was there.