Hi Guys,
Just read this all through again and there's a few things I've spotted that don't seem to have been covered yet.
Hi Sunny,
Just so that I haven't misunderstood anything with the "test" setup you are using, you have Router in the loft connected via filter to the test socket. Cat5 cable from router going to PC downstairs running RouterStats. Using laptop on wireless to browse, perhaps access this forum, run speed tests etc.
First, your last post and loss of wireless. The "system messages" log you attached doesn't appear to specifically address that, but OJ is the expert on RouterStats (I use DMT) so I expect he'll add his comments when he's available. It does seem to suggest the possibility of a power dip, I may be completely wrong. But it would still be useful to know, do you live in an area subject to occasional power dips/outages etc? In any event if it was only the wireless that appeared to dip, I wouldn't worry too much about it at this point, just keep a separate note of what happens, to address later. (Except the fact this may be another pointer to a router problem).
OK, now the rest. A few things to eliminate and check, I'll deal with in order - Phone, Phone Line, Bell Wire, Filter.
Phone - Do you still have a phone plugged into the filter whilst these tests are being done? Is it, it should be, a corded phone (it would be ok to be on an extension lead from the filter, but not the test socket side). Do you have a cordless phone, possibly an analogue but maybe DECT, is it still switched on?
When you use the phone now or in the recent past, have you heard any crackling or other intermittent noises on the line? If you have, confirm they are still present with a corded phone only - any cordless should be unplugged and switched off. If none until now, do a check when you see any noise spikes on your SNRM or Error graphs, and persist with checking until the problem is solved.
Apart from the need to eliminate cordless phones, your SNRM plot suggest some possible intermittency on your line (the 2 dips to zero just after 1435 & 1508 can be ignored as these are likely to be router polling issues especially if you see a comparable dip on the sync plot at the same instant).
OK, that's phone & phone line. Now bell wire - wiring. Your master socket - what type is it? If it has the OpenReach logo on the front, we can forget the rest. If it has just the BT/piper logo on it, then looking at the back of the front plate, arte there any orange (with white) and white(with orange) wires connected to terminals 3 &4. If so they need to be disconnected by gently pulling them vertically out of the IDC connectors, so you are only left with the Blue(with white) and White(with blue) wires connected to terminals 2&5. Neatly tuck them back out of the way so they don't come into contact with other items on the back of the front plate.
Now the filter plugged into the test socket. This may be faulty. What type is it? Please describe with any identifying marks. Is it the same filter as you normally use? Do you have another of know high quality. The bit per tone plot that you attached to post #90 shows a lot of attenuation of the higher frequencies, with significant missing tones above 182. This could be due to faulty filter, check by substitution, faulty router, check by substitution, or interference. In theory, your line should be able to sync between 5 1/2 & 6M. It is this limitation that is stopping that. Some basic filters (usually cheap) can cause this, which is why I mention "known high quality".
I know some points have been mentioned but it may be worth clarifying how ADSL works. Apart from congestion/contention, your throughput (your obvious concern from your OP) is controlled by your profile, which is controlled by your sync speed. This is dependant on the length of your line and the amount of noise on it. The length you can't change. Noise if picked up locally (more common) can hopefully be reduced, some measures have been mentioned.
If it's interference then we have to look at tracking it down.
It's also worth mentioning that whilst doing all these tests, it pointless doing routine BT speed checks (especially as you have to wait 3hrs between tests, and it can be iffy getting them started sometimes!). The data you need to look at is obtainable from your router stats. Once the sync speed is up, it make take 3-5 days for your profile to rise (exchange DLM software), so it is worth running an odd check after a day or two, & once the profile is up, running speed throughput tests.
Finally, a plea, please don't fully quote an immediately preceding post, it makes it difficult to follow a complex thread (apart from which it's against forum rules!). There are reply buttons at the top of the page and bottom of the posts.
Chris.
Edit: Barry beat me to the comments about interference, also add bit about BT tests.
