General Discussion
  >> General Broadband Chatter


Register (or login) on our website and you will not see this ad.


Pages in this thread: 1 | 2 | 3 | (show all)   Print Thread
Standard User jim66
(newbie) Sun 12-Apr-15 19:12:44
Print Post

FEC errors ?


[link to this post]
 
i used to be syncing at 7648 with an ip profile of 6500 and snr of 6.

for weeks my internet has felt unresponsive and slow at times , (but on speed test always getting just over 6mb), have had an BT OR engineer out, and he says the reason for this , is i am getting 100s of FEC errors a second, was showing on his equipment when he tested at the cabinet and just outside my property.

He was he nearly 8 hours but everything he checked was fine, he think the FEC errors is been caused by REIN, in the mean time he has had my snr set at 9 , sync at 5984 with ip profile of 5000 , with only a couple of FEC errors a second.

At the moment everything seems more quicker , and more responsive, will this be due to the above ?

Is it likely the FEC errors are been caused by REIN ?

Edited by jim66 (Sun 12-Apr-15 19:24:34)

Standard User Zarjaz
(eat-sleep-adslguide) Sun 12-Apr-15 22:17:42
Print Post

Re: FEC errors ?


[re: jim66] [link to this post]
 
Is it likely the FEC errors are been caused by REIN ?

Not always, but if he spent 8 hours on site, and he was still seeing them, there is a fair chance. Did the engineer get a REIN case raised ? Are any of your immediate neighbours having similar issues ?

If it were REIN, I'd be dubious that having the target snd hard pinned at 9db would really be masking the issue so well.

Are you are to post stats from your router ?

Standard User bobble_bob
(fountain of knowledge) Mon 13-Apr-15 06:47:56
Print Post

Re: FEC errors ?


[re: jim66] [link to this post]
 
You have interleaving on your line? Its common to see FEC errors on a line with interleaving turned on anyway


Register (or login) on our website and you will not see this ad.

Standard User jim66
(newbie) Mon 13-Apr-15 08:45:35
Print Post

Re: FEC errors ?


[re: Zarjaz] [link to this post]
 
My neighbours don't seem to be having an issue

I have a REIN engineer coming later in the week

i have interleaving on my line

here are current stats, many thanks

Uptime: 2 days, 16:17:31

DSL Type: ITU-T G.992.1

Bandwidth (Up/Down) [kbps/kbps]: 448 / 5.984

Data Transferred (Sent/Received) [GB/GB]: 0,98 / 1,99

Output Power (Up/Down) [dBm]: 12,3 / 19,9

Line Attenuation (Up/Down) [dB]: 22,5 / 37,5

SN Margin (Up/Down) [dB]: 26,0 / 9,6

System Vendor ID (Local/Remote): TMMB / ----

Chipset Vendor ID (Local/Remote): BDCM / TSTC

Loss of Framing (Local/Remote): 64 / -

Loss of Signal (Local/Remote): 10 / -

Loss of Power (Local/Remote): 0 / -

Loss of Link (Remote): -

Error Seconds (Local/Remote): 1.647 / -

FEC Errors (Up/Down): 1 / 118.272

CRC Errors (Up/Down): 0 / 44

HEC Errors (Up/Down): - / 44 / 382
Standard User chris6273
(committed) Mon 13-Apr-15 16:50:28
Print Post

Re: FEC errors ?


[re: jim66] [link to this post]
 
FEC errors should be expected when interleaving is enabled but too many can be detrimental to performance.

Before the engineer came, was the performance degraded all of the time or only at specific times of the day? If so what times?

The latter is usually a sign of REIN (Although in rare cases it can be continuous) whereas the former can be a sign of a faulty connection somewhere.

-------------------------------------------------------------------
A.K.A: Chrisszzyy

Telewest (2004-2006): 256Kbps -> 512Kbps
University of Portsmouth's Horrible Network (2013 - 2014) - Supposedly 100/100Mbps
BT (2006 - Present): 8128/448 -> 22494/1211 -> 79987/20000Kbps (BT Infinity 2 on Huawei Cab)
Standard User micksharpe
(legend) Mon 13-Apr-15 17:06:22
Print Post

Re: FEC errors ?


[re: jim66] [link to this post]
 
There's a useful article on REIN (and how to detect it) here. All you need to detect REIN interference generated in the home is an AM radio tuned to 612kHz.

Faced with the choice between changing one’s mind and proving that there is no need to do so,
almost everyone gets busy on the proof. -- J.K. Galbraith
Standard User Zarjaz
(eat-sleep-adslguide) Mon 13-Apr-15 19:04:43
Print Post

Re: FEC errors ?


[re: micksharpe] [link to this post]
 
All you need to detect REIN interference generated in the home is an AM radio tuned to 612kHz.

Yes, but lots of things make an audible noise on a radio and yet are not causing any interference.

Standard User micksharpe
(legend) Mon 13-Apr-15 19:20:22
Print Post

Re: FEC errors ?


[re: Zarjaz] [link to this post]
 
Well, I'm going to give it a shot. It may be the cat. You never know.

Faced with the choice between changing one’s mind and proving that there is no need to do so,
almost everyone gets busy on the proof. -- J.K. Galbraith
Standard User RobertoS
(elder) Mon 13-Apr-15 19:30:10
Print Post

Re: FEC errors ?


[re: micksharpe] [link to this post]
 
Then cut its whiskers off.

My broadband basic info/help site - www.robertos.me.uk. Domains, site and mail hosting - Tsohost.
Connection - Plusnet UnLim Fibre (FTTC). Sync 60000/16961kbps @ 600m. - IPv4BQM IPv6BQM
Standard User micksharpe
(legend) Mon 13-Apr-15 19:31:18
Print Post

Re: FEC errors ?


[re: RobertoS] [link to this post]
 
laugh

Faced with the choice between changing one’s mind and proving that there is no need to do so,
almost everyone gets busy on the proof. -- J.K. Galbraith
Pages in this thread: 1 | 2 | 3 | (show all)   Print Thread

Jump to