Connection Problems

[#1]

Thanks, I will check it out.

[#2]

I reset the router again yesterday afternoon.
[BEFORE RESET]:
20/10/2014
Link Information

Uptime: 1 day, 16:13:48
DSL Type: G.992.5 annex A
Maximum Bandwidth (Up/Down) [kbps/kbps]: 1,108 / 8,568
Bandwidth (Up/Down) [kbps/kbps]: 1,112 / 7,864
Data Transferred (Sent/Received) [MB/MB]: 61.34 / 411.87
Output Power (Up/Down) [dBm]: 12.5 / 20.0
Line Attenuation (Up/Down) [dB]: 22.5 / 40.0
SN Margin (Up/Down) [dB]: 5.5 / 8.0
Vendor ID (Local/Remote): TMMB / IFTN
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): 36 / 0
FEC Errors (Up/Down): 0 / 0
CRC Errors (Up/Down): 185 / 7,299
HEC Errors (Up/Down): 121 / 11,862
--
PLUSNET
Always on broadband xDSL
Estimated line speed:
   There's no speed estimate currently held on your account.
Current line speed:    6.9 Mb
------------------
[AFTER RESET]
Link Information

Uptime: 0 days, 0:38:25
DSL Type: G.992.5 annex A
Maximum Bandwidth (Up/Down) [kbps/kbps]: 1,100 / 8,504
Bandwidth (Up/Down) [kbps/kbps]: 1,107 / 8,503
Data Transferred (Sent/Received) [kB/kB]: 69.00 / 118.00
Output Power (Up/Down) [dBm]: 12.5 / 20.0
Line Attenuation (Up/Down) [dB]: 22.5 / 40.0
SN Margin (Up/Down) [dB]: 6.0 / 6.0
Vendor ID (Local/Remote): TMMB / IFTN
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): 0 / 0
CRC Errors (Up/Down): 6 / 35
HEC Errors (Up/Down): 5 / 129
-------------------
Download speed increased after the reset but it didn't last long.
A ten minute burst of REIN around 1pm TODAY [21/10/14 ]knocked it back down to under 4Mb.
---------------
CURRENT figures:
Thomson Gateway
Link Information

Uptime: 0 days, 7:37:24
DSL Type: G.992.5 annex A
Maximum Bandwidth (Up/Down) [kbps/kbps]: 1,044 / 8,412
Bandwidth (Up/Down) [kbps/kbps]: 1,043 / 5,176
Data Transferred (Sent/Received) [MB/MB]: 21.06 / 249.97
Output Power (Up/Down) [dBm]: 12.5 / 19.5
Line Attenuation (Up/Down) [dB]: 22.5 / 40.0
SN Margin (Up/Down) [dB]: 6.0 / 15.5
Vendor ID (Local/Remote): TMMB / IFTN
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): 66,337 / 0
FEC Errors (Up/Down): 0 / 0
CRC Errors (Up/Down): 130 / 29,713
HEC Errors (Up/Down): 84 / 13,159
------------------------
BTW TEST
1. Best Effort Test: -provides background information.
Download  Speed
3.18 Mbps

0 Mbps 7.15 Mbps
Max Achievable Speed
Download speedachieved during the test was - 3.18 Mbps
For your connection, the acceptable range of speeds is 2 Mbps-7.15 Mbps.
IP Profile for your line is - 4.57 Mbps
2. Upstream Test: -provides background information.
Upload Speed
0.75 Mbps

0 Mbps 0.83 Mbps
Max Achievable Speed
Upload speed achieved during the test was - 0.75Mbps
Additional Information:
Upstream Rate IP profile on your line is - 0.83 Mbps
-----------------------
https://portal.plus.net/my.html?action=data_transfer_speed
Estimated line speed:
   There's no speed estimate currently held on your account.
Current line speed:
   4.5 Mb

[#3]

What was the purpose of the router "reset" (I assume you mean reboot) yesterday afternoon? If you only need to re-connect for a changed plusnet current line speed to take effect, just disconnect and re-connect via the router web interface.
Interleaving seems to be off judging by the zero FEC errors. Interleaving being on should have made the ADSL a little more resilient to the interference.
Edit: fix typo

[#4]

Hi Bookworms,
This is a bit disconcerting - synch speed is down and SNRM is well up.  That could be due to there being REIN present when you resynch'd or the DLM is aggressively managing your line...
@CRT,
Can we have an update please?
Kevin

[#5]

Quote from: ejs

just disconnect [via] the router web interface.

I did that first but reconnected by switching the router off and then on again after about 20 mins.

[#6]

Quote from: Townman

Hi Bookworms, This is a bit disconcerting - synch speed is down and SNRM is well up.  That could be due to there being REIN present when you resynch'd or the DLM is aggressively managing your line...

I've upload a routerstat graph of the period the synch speed went down and SNRM went up.

Current figures:
--------------------------
btwholesale.com
1. Best Effort Test: -provides background information.
Download speed achieved during the test was - 4.45 Mbps
For your connection, the acceptable range of speeds is 2 Mbps-7.15 Mbps.
IP Profile for your line is - 4.57 Mbps
2. Upstream Test
Upload speed achieved during the test was - 0.42Mbps
Additional Information:
Upstream Rate IP profile on your line is - 0.83 Mbps
----------------------------------------------------------
Thomson Gateway
DSL Connection
Link Information

Uptime: 0 days, 11:16:22
DSL Type: G.992.5 annex A
Maximum Bandwidth (Up/Down) [kbps/kbps]: 1,044 / 8,172
Bandwidth (Up/Down) [kbps/kbps]: 1,043 / 5,176
Data Transferred (Sent/Received) [MB/MB]: 25.47 / 268.72
Output Power (Up/Down) [dBm]: 12.5 / 19.5
Line Attenuation (Up/Down) [dB]: 22.5 / 40.0
SN Margin (Up/Down) [dB]: 6.0 / 14.5
Vendor ID (Local/Remote): TMMB / IFTN
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): 66,337 / 0
FEC Errors (Up/Down): 0 / 0
CRC Errors (Up/Down): 138 / 29,734
HEC Errors (Up/Down): 89 / 13,173

[#7]

I have only just read this thread.  If the interference has indeed gone away or reduced to a level you can live with there is probably not much point in asking this.  At one stage it was suggested that you could use the radio as a direction finder to narrow down where the interference was coming from.  Did you follow that up?  (Sorry if I missed it but it is a long thread.)  This thread explains better than I can how to do it.
http://forum.kitz.co.uk/index.php?topic=9805.0
I hope the interference really has gone away permanently and you don't need to do it.

[#8]

Quote from: PNRichardC

At one stage it was suggested that you could use the radio as a direction finder to narrow down where the interference was coming from.

Yes, I've tried that thanks!
The signal was fairly consistent along the whole route of the wires and cables that run parallel beneath the pavement for several hundred yards.
I've a feeling it could be coming from the mains wiring somewhere along the street, but I don't really know.
As it is now very intermittent, I think the chances of tracking it down for definite are rather silm.

[#9]

@PNRichardC - Yes he has tried it, but needs to pursue a bit more as I'll go on to explain later, and it hasn't gone away!
Hi Bookworms, sorry not to have got back to you sooner, there wasn't, at the last time I read, an awful lot I could add at the time, but more recent posts are completing the picture a bit more.
Just before I address a few specific points, just a reminder for any other readers (and/or posters) in this thread, that you are familiar with how to do graceful disconnects/resyncs using the Disconnect Method as mentioned in reply #15   Always use that method even if all you want is a resync. It's worth remembering that DLM takes account of errors as well as drops in sync and in some circumstances it could take just that one incident to cause DLM to raise the Target SNRM or band the speed which you certainly don't want, as if the REIN problem isn't enough already. So far, such extra problems have been avoided.
I take it that was an RF3 filter the engineer fitted? (reply #48) as well as the Mk.2 vDSL plate - this having a common-mode filter - all good stuff and will help, but this interference reducing your DS margin by 10dB is severe.
Did you not mention the Open cabinets etc to the engineer when he came?
Just looking at the stats again, I see a small effect on the Upstream. Are you plotting the Upstream SNRM in Routerstats? It would be interesting, just for the record to see the corresponding Upstream alongside the downstream which may just provide a little more information.  Other than that, I see little point in graphing it continuously as it won't yield any further additional information thereafter.
What would also be of more significant interest at this time would be some Bits/Tone plots.
A normal daytime one - ie when you are synced at high speed with your typical ~6dB SNRM.
A daytime one when the Interference appears (I assume it causes a resync everytime from your posts, so sync speed will be lower)
A daytime one synced at the lower speed when the Interference has gone away/is not present.
If possible, a late evening one where you are synced at the high speed from daytime, not having a sync loss caused by the Interference earlier in the day.
In addition to those plots, for each of the above, Diagnostic results from the BTw Performance test (ignore the red preamble except make sure no other programs are using the Internet) and at the end of the first run, click the Further Diagnostics button, enter just your Phone number and Run the Further Diagnostics Test.
Do a Copy and Paste of the results and post here (no need to grab an image).
I'll just post this and do another post on REIN tracking shortly.

[#10]

Quote from: Anotherone

Did you not mention the Open cabinets etc to the engineer when he came?

Oddly enough, I again reported an open cabinet door to BTO's fault reporting number only yesterday.
The guy on the other end checked it against their maps and confirmed that it was in fact a Virgin cab and the BT one was located several metres away from it.

[#11]

If that's the one next to, or is the one making lots of noise, I'd find Virgin's freephone number and report it to them. I tell them that there's a lot of broadband and radio interference locally and as their cabinets are insecure/making noises, you don't know if some one has been tampering or if anything is faulty but if they don't come and have a look you'll be reporting it to OFCOM.

[#12]

Thanks, I will get on to that.
BTo advised me to phone the local council about the cab, which seemed a bit odd.
As for the rest of your points, I will absorb them and reply later, though I think I did post the BTw diagnostic results in one of my  posts yesterday.

[#13]

Ah, don't forget it's a BTw Diagnostic result for each of those 4 conditions, so 4 lots of Diagnostic results  
They don't have to be (can't be) all on the same day, well very unlikely anyway!

[#14]

Quote

BTo advised me to phone the local council about the cab, which seemed a bit odd.

Many councils have public safety responsibilities and will react to reports of an open cabinet which may expose mains connections. Same applies to street lighting poles which have live cables behind an inspection door just above ground level, these can be 'brushed' off by minor traffic impact. The more hassle to the offending owner the better chance of a swift repair, especially as once notified the owner is wide open to negligence claims. I hope you can track down your infuriating problem, good luck!

[#15]

Good point there Longliner, and Welcome to the Forum btw