Should I be getting this many errors on O2?

OzyOly

OzyOly

OzyOly

Soldato
Joined
5 Feb 2006
Posts
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Location
15,000ft.
After a bit of trouble with ADSL not working on my line for two days I'm up and running again and forced the router onto ADSL2+ Annex A (was on M initially but really didn't need the 0.1Mb upload speed gain).

Now I know I'm probably syncing too fast for my rubbish line, but are these many errors normal? :confused:

Thanks.

Code: 
Link Information

Uptime:	4 days, 2:05:15

DSL Type:	G.992.5 annex A

Bandwidth (Up/Down) [kbps/kbps]:	1,200 / 4,884

Data Transferred (Sent/Received) [MB/GB]:	788.40 / 9.76

Output Power (Up/Down) [dBm]:	12.0 / 18.5

Line Attenuation (Up/Down) [dB]:	25.0 / 47.0

SN Margin (Up/Down) [dB]:	6.5 / 6.0

Vendor ID (Local/Remote):	TMMB / BDCM

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):	0

Error Seconds (Local/Remote):	0 / 0

FEC Errors (Up/Down):	2,667 / 78,612

CRC Errors (Up/Down):	2,667 / 76

HEC Errors (Up/Down):	56,189 / 46
 
To be honest you should be able to sync maybe a megabit higher than that, depending on internal line conditions etc. Those errors are fine, the O2 router is known to exaggerate the amount of errors it actually has.

Try syncing on standard ADSL2 or even ADSL, it sometimes helps with long lines.
 
benftl said:
To be honest you should be able to sync maybe a megabit higher than that, depending on internal line conditions etc. Those errors are fine, the O2 router is known to exaggerate the amount of errors it actually has.

Try syncing on standard ADSL2 or even ADSL, it sometimes helps with long lines.
Click to expand...

Well I have the Wireless Box III (Thompson TG585n) plugged into a faceplate that's on the master socket so can't improve the wiring more than that I guess. :(

It's such a step down for me. I used to be on a 100Mbps/100Mbps internet connection and now I'm on this. It seems to be slower than the actual sync speeds though, I'm trying to connect to a virtual desktop in my uni department and it's near unusable sometimes...
 
Fair enough. Have you checked to make sure no 'ring wire' is attached behind the faceplate?

You could try speedtest.net to see if your throughput closely matches your sync speed, also try syncing at ADSL2 / ADSL rates and see what happens :)
 
benftl said:
Fair enough. Have you checked to make sure no 'ring wire' is attached behind the faceplate?

You could try speedtest.net to see if your throughput closely matches your sync speed, also try syncing at ADSL2 / ADSL rates and see what happens :)
Click to expand...

Maybe it's all in my head then? This seems pretty close.

896693352.png
 
Speed for the line length looks about right, perhaps a little slow but the number of errors in 4 days uptime for the volume of data transferred is ok. Perhaps do a trace route to your Uni to see if there is any packet loss in the network route to them.

Code: 
Uptime:    0 days, 0:39:55
Modulation:    G.992.5 Annex A
Bandwidth (Up/Down) [kbps/kbps]:    1,088 / 12,093
Data Transferred (Sent/Received) [MB/MB]:    5.96 / 7.43
Output Power (Up/Down) [dBm]:    12.0 / 19.0
Line Attenuation (Up/Down) [dB]:    13.5 / 27.0
SN Margin (Up/Down) [dB]:    0.5 / 6.0
Vendor ID (Local/Remote):    TMMB / µ
Loss of Framing (Local/Remote):    127 / 0
Loss of Signal (Local/Remote):    68 / 0
Loss of Power (Local/Remote):    0 / 0
Loss of Link (Remote):    0
Error Seconds (Local/Remote):    835 / 0
FEC Errors (Up/Down):    0 / 1,846
CRC Errors (Up/Down):    205,778 / 2
HEC Errors (Up/Down):    451,849 / 2

Now that's what you call a useless line. Those stats are in the last 6 hours.
 
For 4 days sync there is nothing wrong with them errors

FEC Errors (Up/Down): 2,667 / 78,612

CRC Errors (Up/Down): 2,667 / 76


You should be able to get a bit more from the line, ask o2 to turn annex M off and put you on a 3db profile and see how that goes, you have nothing to lose.
 
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