Is it fixed?

Hello all,

I've has ADSL for over 5 years now. My router would sync at around 3400 and stay connected for weeks. They'd be plenty of FEC errors, but no problems with surfing.

However, about 10 days ago problems started. My router would sync, but would not stay connected for more than 1 minute. It would continuously just sync and lose sync every minute. It was impossible to use. I noticed in the router stats that I had an equal number of CRC & HEC errors during that minute.

After reporting it to my ISP & BT, it is now working again. My stats are:

Downstream: 3424 Kbps
Upstream: 448 Kbps
Multimode Transmit Power: 11.7 dB
Connected: 28 minutes
SNR: 10.5dB
Line At: 40.5dB
CRC: 3
FEC: 53000
HEC: 1

Does the above look like a healthy set of stats, particularly the FEC errors after only 28 minutes? Have BT fixed it, or is it just working today because we had a nice day?

Help appreciated, as BT are coming again on Thurs and I'm not sure whether it still needs fixing or I should cancel.

Thanks,

Mike

The DS sync looks low for your attenuation TBH.....I'd keep the appointment. You are connected at the NTE with all else disconnected to make this test, aren't you ?

Yes, I have tested at the NTE twice and the results are the same as from the extension point which I use usually.

To be honest I think the good weather is helping it work at the moment. If it gets rainy/windy again I think it may stop working. I think the overhead wire that serves the house must be damaged (again).

Is it normal/OK to get a lot of FEC errors? My stats now are:

ADSL Line State: Showtime
Downstream: 3424 Kbps
Upstream: 448 Kbps
Mode: Multimode
Transmit Power: 11.7 dB
ADSL Link UP Time: 1 day 11 hour 4 min 21 sec

SNR Margin 12.0 dB
Line Attenuation 40.5 dB
CRC Errors 1213
FEC Errors 62314
HEC Errors 1086

Does the above look healthy?

FEC stands for Forward Error Correction and is the part of Interleaving process, as used by BT MAX, that corrects data transmission errors at your end by sending more error correction data along with the data. In other words, while a high number indicate a noisy line, FEC errors themselves are not a cause for concern as they are errors corrected at your end not requiring retransmission.

CRC errors on the other hand are errors that do require retransmitting of the data, however, the 1213 over a 35+ hour period is no biggy.

Thanks for your response.

I'm suspecting that a few good/dry days of weather have lead to my ADSL to start working again, although the stats and listening to the line indicate that there is still a lot of noise on the line.

I hope when the BT engineer turns up tomorrow he'll fix the noise, and the problem will be resolved permanently.

Thanks

I've just put up another post that sounds very similar to this. I'm really curious to know is this an intermittent problem or is your problem now happening all the time?

I don't actually have a router but the losing connection inside of a minute after a reconnect sounds spot on. I'm also with Pipex and I would say my issues started around 10 days ago but i can have one day where I am fine, the next it's unuseable..

*edit* my thread here - http://bbs.adslguide.org.uk/showthreaded.php?Cat=&Board=technical&Number=2967655&page=0&view=collapsed&sb=5&o=0&fpart=

Edited by tobyh (Tue 10-Apr-07 13:23:56)