DSLAM Profile question

Hi Guys, I hope you can help me with a question.
My download speeds have until recently, been pretty good 5-6Mbps.
Now they keep dropping to 1.4Mbps. It forst dropped about 2 weeks ago.
I went through some checks with my ISP (Eclipse), Changed filters, modem, and tested from my test socket at the master socket. All showed no improvement.
After a few days my speed started to climb again and got back uip to a steady 5.5Mbps.
On Friday they dropped again and are now steady at 1.4Mbps again.
My ISP is asking me to go through the same check again even though theyt didn't make any difference last time.
My question is quite simple realy... The DSLAM at the exchange reduced my profile speed when it sees drops in the line. When the line is steady it gradualy increases my profile speed over 10 days as long as it remainsd stable.
So.. If I change say a faulty filter will I see an immediate improvement in speed or will it take time for the DSLAM to see the improvement and increase my profile speed?
In other words do I need to change one thing and leave it for a day or so to see if there is any improvement or can I test and prove/disprove a faulty item straight away.
One other point I am pondering... I notice I very slight level of background noise on the telephone side whn off hook. It's certainly not enough to interfere with phone operation. In fact I can't be sure it's not me being paranoid to be honest.
If I book it out as a phone fault and BT find nothing wrong will they charge me the earth for doing b*gg*r all?

Just to be clear I have spare filters and a spare Modem (albeit and old SMC barricade) all of which make no difference.
I have an NTU5 Master socket and am currently plugged into the test socket so no extensions to worry about.
My main concern is the threat that BT will charge extortionate amounts if they find no fault so I am having to jump through hoops to p;rove it isn't my kit.

Any advice greatly appreciated.
Regards
Clive

Your line speed (on a resold BT product) is limited by BT's profiling system. The system drops your maximum line speed quickly if your sync rate drops, and raises it slowly if your sync rate climbs. Drops within minutes, climbs after up to 5 days.

Have you done a quiet line test with your router disconnected? (BT dial 17070 option 2).

Are your stats the same in and out of the test socket (within modern BT master sockets)?

Many thanks for fast reply John.

In reply to a post by john2007:

Your line speed (on a resold BT product) is limited by BT's profiling system. The system drops your maximum line speed quickly if your sync rate drops, and raises it slowly if your sync rate climbs. Drops within minutes, climbs after up to 5 days.

So that means I won't see any improvement if I swap say a faulty filter for a good one straight away?

In reply to a post by john2007:

Have you done a quiet line test with your router disconnected? (BT dial 17070 option 2).

Never heard of it. I will go offline and try it now. Thanks for the heads up on it.

In reply to a post by john2007:

Are your stats the same in and out of the test socket (within modern BT master sockets)?

Yes same in test socket as it is with faceplate in place.

UPDATE:
Just done quiet line test and with a wired handset in place the noise level is hardly discernable. I think I was just being paranoid.

Edited by deleted (Sun 03-Apr-11 17:00:38)

If you restart your router it will sync as high as possible given the current line conditions, so if you replace a faulty component the sync rate will improve immediately. However BT's profiling system imposes a cap at the old, slower, sync rate for up to five days.

Sorry If I'm being dim but does that mean that as long as I restart my router I will see an improvement immediately and if I don't then I won't see any improvement for several days?
My route connection speed, which I think is the sync rate yopu refer to is a constant at 6.7Mbps.
If I understand you correctly is it true to say that restarting modem will reset the profile in the DSLAM?
Just trying to get my head around the processes here. Thanks for your patience

If you always sync at the same rate the BT profiling system isn't a factor.

e.g. if you sync at 8128kbps the BT profile will be 7150kbps. If you sync lower the BT profile will be quickly reduced so that they don't pump data to you at a rate greater than you can receive. If you sync higher they slowly start to pump data at a greater rate again, but the ramp up in profile can take days.

Can you do a BT speed test and cut & paste the result excluding your phone number.

See http://www.speedtester.bt.com/

Here results......

Download speed achieved during the test was - 1362 Kbps
For your connection, the acceptable range of speeds is 400-2000 Kbps.
Additional Information:
Your DSL Connection Rate :6784 Kbps(DOWN-STREAM), 448 Kbps(UP-STREAM)
IP Profile for your line is - 1500 Kbps

The IP/BT profile of 1500 kbps is the sticking point, that is what is limiting your speeds. That should rise if your sync rate stays the same.

A profile of 1500 kbps suggests that your router/modem has recently synced at less than 2272 kbps.

Have a look at http://www.dslzoneuk.net/adslmax_explained.php

Thanks for the link John, good reading.
So as I see it my sync rate (Router Status/Show SAtats/Connection Speed on my Netgear 834GT) of 6752 kbps should give me a max data rate of 5.5Mbps. Which is exactly what I had before.
This looks to be stable and is the same every time I look it up. It is however a real time monitor, polling every 10 seconds. So how can I be sure that in the meantime it hasn't done a resync at a lower speed and then another at the higher? From what the tutorial says it would take the lower one unless the higher was maintained for some time.
I do get a log file emailed out of my router daily and sometimes it shows one or a number of LCP Down/Init LPC/LCP is allowed to come up and CHAP Authentication Failed or success. Sometimes it goes through this sycle many timers before a chap authentication is successful a bad one pasted at bottom....
I have sent these to my ISP but they seem to ignore them. Are they relevant?
Is this my modem resyncing?
If so how do I know what rate it synced at given this is historical information?
Am I right in assuming that my modem must be resyncing at a lower rate at some point for my speed to be reduced like this?? Or could it be the BRAS stuck??

I have now simplified my side of things completely. Discxonnected from my LAN and connected my PC directly to router, router connected directly to test socket using different filter so not sure what else I can do to prove it's not my end??

Wed, 2011-03-30 02:52:30 - LCP is allowed to come up.
Wed, 2011-03-30 02:53:30 - Initialize LCP.
Wed, 2011-03-30 02:53:30 - LCP is allowed to come up.
Wed, 2011-03-30 02:54:31 - Initialize LCP.
Wed, 2011-03-30 02:54:31 - LCP is allowed to come up.
Wed, 2011-03-30 02:55:25 - CHAP authentication failed
Wed, 2011-03-30 02:55:25 - LCP down.
Wed, 2011-03-30 02:55:31 - Initialize LCP.
Wed, 2011-03-30 02:55:31 - LCP is allowed to come up.
Wed, 2011-03-30 02:56:31 - Initialize LCP.
Wed, 2011-03-30 02:56:31 - LCP is allowed to come up.
Wed, 2011-03-30 02:57:31 - Initialize LCP.
Wed, 2011-03-30 02:57:31 - LCP is allowed to come up.
Wed, 2011-03-30 02:58:31 - Initialize LCP.
Wed, 2011-03-30 02:58:32 - LCP is allowed to come up.
Wed, 2011-03-30 02:59:32 - Initialize LCP.
Wed, 2011-03-30 02:59:32 - LCP is allowed to come up.
Wed, 2011-03-30 03:00:32 - Initialize LCP.
Wed, 2011-03-30 03:00:32 - LCP is allowed to come up.
Wed, 2011-03-30 03:01:17 - CHAP authentication failed
Wed, 2011-03-30 03:01:17 - LCP down.
Wed, 2011-03-30 03:01:32 - Initialize LCP.
Wed, 2011-03-30 03:01:32 - LCP is allowed to come up.
Wed, 2011-03-30 03:02:32 - Initialize LCP.
Wed, 2011-03-30 03:02:32 - LCP is allowed to come up.
Wed, 2011-03-30 03:03:32 - Initialize LCP.
Wed, 2011-03-30 03:03:32 - LCP is allowed to come up.
Wed, 2011-03-30 03:04:32 - Initialize LCP.
Wed, 2011-03-30 03:04:32 - LCP is allowed to come up.
Wed, 2011-03-30 03:05:32 - Initialize LCP.
Wed, 2011-03-30 03:05:32 - LCP is allowed to come up.
Wed, 2011-03-30 03:06:32 - Initialize LCP.
Wed, 2011-03-30 03:06:32 - LCP is allowed to come up.
Wed, 2011-03-30 03:06:54 - CHAP authentication failed
Wed, 2011-03-30 03:06:54 - LCP down.
Wed, 2011-03-30 03:07:33 - Initialize LCP.
Wed, 2011-03-30 03:07:33 - LCP is allowed to come up.
Wed, 2011-03-30 03:08:33 - Initialize LCP.
Wed, 2011-03-30 03:08:33 - LCP is allowed to come up.
Wed, 2011-03-30 03:09:33 - Initialize LCP.
Wed, 2011-03-30 03:09:33 - LCP is allowed to come up.
Wed, 2011-03-30 03:10:33 - Initialize LCP.
Wed, 2011-03-30 03:10:33 - LCP is allowed to come up.
Wed, 2011-03-30 03:11:33 - Initialize LCP.
Wed, 2011-03-30 03:11:33 - LCP is allowed to come up.
Wed, 2011-03-30 03:12:34 - Initialize LCP.
Wed, 2011-03-30 03:12:34 - LCP is allowed to come up.
Wed, 2011-03-30 03:13:34 - Initialize LCP.
Wed, 2011-03-30 03:13:34 - LCP is allowed to come up.
Wed, 2011-03-30 03:14:34 - Initialize LCP.
Wed, 2011-03-30 03:14:34 - LCP is allowed to come up.
Wed, 2011-03-30 03:15:34 - Initialize LCP.
Wed, 2011-03-30 03:15:34 - LCP is allowed to come up.
Wed, 2011-03-30 03:16:34 - Initialize LCP.
Wed, 2011-03-30 03:16:34 - LCP is allowed to come up.
Wed, 2011-03-30 03:17:34 - Initialize LCP.
Wed, 2011-03-30 03:17:34 - LCP is allowed to come up.
Wed, 2011-03-30 03:17:40 - CHAP authentication failed
Wed, 2011-03-30 03:17:40 - LCP down.
Wed, 2011-03-30 03:18:34 - Initialize LCP.
Wed, 2011-03-30 03:18:34 - LCP is allowed to come up.
Wed, 2011-03-30 03:19:34 - Initialize LCP.
Wed, 2011-03-30 03:19:34 - LCP is allowed to come up.
Wed, 2011-03-30 03:20:34 - Initialize LCP.
Wed, 2011-03-30 03:20:35 - LCP is allowed to come up.
Wed, 2011-03-30 03:21:35 - Initialize LCP.
Wed, 2011-03-30 03:21:35 - LCP is allowed to come up.
Wed, 2011-03-30 03:22:35 - Initialize LCP.
Wed, 2011-03-30 03:22:35 - LCP is allowed to come up.
Wed, 2011-03-30 03:23:28 - CHAP authentication failed
Wed, 2011-03-30 03:23:28 - LCP down.
Wed, 2011-03-30 03:23:35 - Initialize LCP.
Wed, 2011-03-30 03:23:35 - LCP is allowed to come up.
Wed, 2011-03-30 03:24:35 - Initialize LCP.
Wed, 2011-03-30 03:24:35 - LCP is allowed to come up.
Wed, 2011-03-30 03:25:35 - Initialize LCP.
Wed, 2011-03-30 03:25:35 - LCP is allowed to come up.
Wed, 2011-03-30 03:26:35 - Initialize LCP.
Wed, 2011-03-30 03:26:35 - LCP is allowed to come up.
Wed, 2011-03-30 03:27:35 - Initialize LCP.
Wed, 2011-03-30 03:27:35 - LCP is allowed to come up.
Wed, 2011-03-30 03:28:36 - Initialize LCP.
Wed, 2011-03-30 03:28:36 - LCP is allowed to come up.
Wed, 2011-03-30 03:29:06 - CHAP authentication failed
Wed, 2011-03-30 03:29:06 - LCP down.
Wed, 2011-03-30 03:29:36 - Initialize LCP.
Wed, 2011-03-30 03:29:36 - LCP is allowed to come up.
Wed, 2011-03-30 03:30:36 - Initialize LCP.
Wed, 2011-03-30 03:30:36 - LCP is allowed to come up.
Wed, 2011-03-30 03:31:36 - Initialize LCP.
Wed, 2011-03-30 03:31:36 - LCP is allowed to come up.
Wed, 2011-03-30 03:32:36 - Initialize LCP.
Wed, 2011-03-30 03:32:36 - LCP is allowed to come up.
Wed, 2011-03-30 03:33:36 - Initialize LCP.
Wed, 2011-03-30 03:33:36 - LCP is allowed to come up.
Wed, 2011-03-30 03:34:36 - Initialize LCP.
Wed, 2011-03-30 03:34:36 - LCP is allowed to come up.
Wed, 2011-03-30 03:34:54 - CHAP authentication failed
Wed, 2011-03-30 03:34:54 - LCP down.
Wed, 2011-03-30 03:35:36 - Initialize LCP.
Wed, 2011-03-30 03:35:36 - LCP is allowed to come up.
Wed, 2011-03-30 03:36:37 - Initialize LCP.
Wed, 2011-03-30 03:36:37 - LCP is allowed to come up.
Wed, 2011-03-30 03:37:37 - Initialize LCP.
Wed, 2011-03-30 03:37:37 - LCP is allowed to come up.
Wed, 2011-03-30 03:38:37 - Initialize LCP.
Wed, 2011-03-30 03:38:37 - LCP is allowed to come up.
Wed, 2011-03-30 03:39:37 - Initialize LCP.
Wed, 2011-03-30 03:39:37 - LCP is allowed to come up.
Wed, 2011-03-30 03:40:37 - Initialize LCP.
Wed, 2011-03-30 03:40:37 - LCP is allowed to come up.
Wed, 2011-03-30 03:41:37 - Initialize LCP.
Wed, 2011-03-30 03:41:37 - LCP is allowed to come up.
Wed, 2011-03-30 03:42:37 - Initialize LCP.
Wed, 2011-03-30 03:42:37 - LCP is allowed to come up.
Wed, 2011-03-30 03:43:38 - Initialize LCP.
Wed, 2011-03-30 03:43:38 - LCP is allowed to come up.
Wed, 2011-03-30 03:44:38 - Initialize LCP.
Wed, 2011-03-30 03:44:38 - LCP is allowed to come up.
Wed, 2011-03-30 03:45:38 - Initialize LCP.
Wed, 2011-03-30 03:45:38 - LCP is allowed to come up.
Wed, 2011-03-30 03:46:10 - CHAP authentication failed
Wed, 2011-03-30 03:46:10 - LCP down.
Wed, 2011-03-30 03:46:38 - Initialize LCP.
Wed, 2011-03-30 03:46:38 - LCP is allowed to come up.
Wed, 2011-03-30 03:47:38 - Initialize LCP.
Wed, 2011-03-30 03:47:38 - LCP is allowed to come up.
Wed, 2011-03-30 03:48:38 - Initialize LCP.
Wed, 2011-03-30 03:48:38 - LCP is allowed to come up.
Wed, 2011-03-30 03:49:38 - Initialize LCP.
Wed, 2011-03-30 03:49:38 - LCP is allowed to come up.
Wed, 2011-03-30 03:50:38 - Initialize LCP.
Wed, 2011-03-30 03:50:38 - LCP is allowed to come up.
Wed, 2011-03-30 03:51:39 - Initialize LCP.
Wed, 2011-03-30 03:51:39 - LCP is allowed to come up.
Wed, 2011-03-30 03:51:59 - CHAP authentication failed
Wed, 2011-03-30 03:51:59 - LCP down.
Wed, 2011-03-30 03:52:39 - Initialize LCP.
Wed, 2011-03-30 03:52:39 - LCP is allowed to come up.
Wed, 2011-03-30 03:53:39 - Initialize LCP.
Wed, 2011-03-30 03:53:39 - LCP is allowed to come up.
Wed, 2011-03-30 03:54:39 - Initialize LCP.
Wed, 2011-03-30 03:54:39 - LCP is allowed to come up.
Wed, 2011-03-30 03:55:39 - Initialize LCP.
Wed, 2011-03-30 03:55:39 - LCP is allowed to come up.
Wed, 2011-03-30 03:56:39 - Initialize LCP.
Wed, 2011-03-30 03:56:39 - LCP is allowed to come up.
Wed, 2011-03-30 03:57:27 - CHAP authentication failed
Wed, 2011-03-30 03:57:27 - LCP down.
Wed, 2011-03-30 03:57:39 - Initialize LCP.
Wed, 2011-03-30 03:57:39 - LCP is allowed to come up.
Wed, 2011-03-30 03:58:39 - Initialize LCP.
Wed, 2011-03-30 03:58:40 - LCP is allowed to come up.
Wed, 2011-03-30 03:59:40 - Initialize LCP.
Wed, 2011-03-30 03:59:40 - LCP is allowed to come up.
Wed, 2011-03-30 04:00:40 - Initialize LCP.
Wed, 2011-03-30 04:00:40 - LCP is allowed to come up.
Wed, 2011-03-30 04:01:40 - Initialize LCP.
Wed, 2011-03-30 04:01:40 - LCP is allowed to come up.
Wed, 2011-03-30 04:02:40 - Initialize LCP.
Wed, 2011-03-30 04:02:40 - LCP is allowed to come up.
Wed, 2011-03-30 04:03:18 - CHAP authentication failed
Wed, 2011-03-30 04:03:18 - LCP down.
Wed, 2011-03-30 04:03:40 - Initialize LCP.
Wed, 2011-03-30 04:03:40 - LCP is allowed to come up.
Wed, 2011-03-30 04:04:40 - Initialize LCP.
Wed, 2011-03-30 04:04:40 - LCP is allowed to come up.
Wed, 2011-03-30 04:05:40 - Initialize LCP.
Wed, 2011-03-30 04:05:40 - LCP is allowed to come up.
Wed, 2011-03-30 04:06:41 - Initialize LCP.
Wed, 2011-03-30 04:06:41 - LCP is allowed to come up.
Wed, 2011-03-30 04:07:41 - Initialize LCP.
Wed, 2011-03-30 04:07:41 - LCP is allowed to come up.
Wed, 2011-03-30 04:08:41 - Initialize LCP.
Wed, 2011-03-30 04:08:41 - LCP is allowed to come up.
Wed, 2011-03-30 04:09:22 - CHAP authentication failed
Wed, 2011-03-30 04:09:22 - LCP down.
Wed, 2011-03-30 04:09:41 - Initialize LCP.
Wed, 2011-03-30 04:09:41 - LCP is allowed to come up.
Wed, 2011-03-30 04:10:41 - Initialize LCP.
Wed, 2011-03-30 04:10:41 - LCP is allowed to come up.
Wed, 2011-03-30 04:11:41 - Initialize LCP.
Wed, 2011-03-30 04:11:41 - LCP is allowed to come up.
Wed, 2011-03-30 04:12:41 - Initialize LCP.
Wed, 2011-03-30 04:12:41 - LCP is allowed to come up.
Wed, 2011-03-30 04:13:41 - Initialize LCP.
Wed, 2011-03-30 04:13:42 - LCP is allowed to come up.
Wed, 2011-03-30 04:14:42 - Initialize LCP.
Wed, 2011-03-30 04:14:42 - LCP is allowed to come up.
Wed, 2011-03-30 04:14:52 - CHAP authentication failed
Wed, 2011-03-30 04:14:52 - LCP down.
Wed, 2011-03-30 04:15:42 - Initialize LCP.
Wed, 2011-03-30 04:15:42 - LCP is allowed to come up.
Wed, 2011-03-30 04:16:42 - Initialize LCP.
Wed, 2011-03-30 04:16:42 - LCP is allowed to come up.
Wed, 2011-03-30 04:17:42 - Initialize LCP.
Wed, 2011-03-30 04:17:42 - LCP is allowed to come up.
Wed, 2011-03-30 04:18:42 - Initialize LCP.
Wed, 2011-03-30 04:18:42 - LCP is allowed to come up.
Wed, 2011-03-30 04:19:42 - Initialize LCP.
Wed, 2011-03-30 04:19:42 - LCP is allowed to come up.
Wed, 2011-03-30 04:20:22 - CHAP authentication failed
Wed, 2011-03-30 04:20:22 - LCP down.
Wed, 2011-03-30 04:20:42 - Initialize LCP.
Wed, 2011-03-30 04:20:42 - LCP is allowed to come up.
Wed, 2011-03-30 04:21:42 - Initialize LCP.
Wed, 2011-03-30 04:21:42 - LCP is allowed to come up.
Wed, 2011-03-30 04:22:43 - Initialize LCP.
Wed, 2011-03-30 04:22:43 - LCP is allowed to come up.
Wed, 2011-03-30 04:23:43 - Initialize LCP.
Wed, 2011-03-30 04:23:43 - LCP is allowed to come up.
Wed, 2011-03-30 04:24:43 - Initialize LCP.
Wed, 2011-03-30 04:24:43 - LCP is allowed to come up.
Wed, 2011-03-30 04:25:43 - Initialize LCP.
Wed, 2011-03-30 04:25:43 - LCP is allowed to come up.
Wed, 2011-03-30 04:26:08 - CHAP authentication failed
Wed, 2011-03-30 04:26:08 - LCP down.
Wed, 2011-03-30 04:26:43 - Initialize LCP.
Wed, 2011-03-30 04:26:43 - LCP is allowed to come up.
Wed, 2011-03-30 04:27:43 - Initialize LCP.
Wed, 2011-03-30 04:27:43 - LCP is allowed to come up.
Wed, 2011-03-30 04:28:43 - Initialize LCP.
Wed, 2011-03-30 04:28:43 - LCP is allowed to come up.
Wed, 2011-03-30 04:29:43 - Initialize LCP.
Wed, 2011-03-30 04:29:43 - LCP is allowed to come up.
Wed, 2011-03-30 04:30:44 - Initialize LCP.
Wed, 2011-03-30 04:30:44 - LCP is allowed to come up.
Wed, 2011-03-30 04:31:44 - Initialize LCP.
Wed, 2011-03-30 04:31:44 - LCP is allowed to come up.
Wed, 2011-03-30 04:32:44 - Initialize LCP.
Wed, 2011-03-30 04:32:44 - LCP is allowed to come up.
Wed, 2011-03-30 04:33:44 - Initialize LCP.
Wed, 2011-03-30 04:33:44 - LCP is allowed to come up.
Wed, 2011-03-30 04:34:44 - Initialize LCP.
Wed, 2011-03-30 04:34:44 - LCP is allowed to come up.
Wed, 2011-03-30 04:35:44 - Initialize LCP.
Wed, 2011-03-30 04:35:44 - LCP is allowed to come up.
Wed, 2011-03-30 04:36:44 - Initialize LCP.
Wed, 2011-03-30 04:36:44 - LCP is allowed to come up.
Wed, 2011-03-30 04:36:55 - CHAP authentication failed
Wed, 2011-03-30 04:36:55 - LCP down.
Wed, 2011-03-30 04:37:45 - Initialize LCP.
Wed, 2011-03-30 04:37:45 - LCP is allowed to come up.
Wed, 2011-03-30 04:38:45 - Initialize LCP.
Wed, 2011-03-30 04:38:45 - LCP is allowed to come up.
Wed, 2011-03-30 04:39:45 - Initialize LCP.
Wed, 2011-03-30 04:39:45 - LCP is allowed to come up.
Wed, 2011-03-30 04:40:45 - Initialize LCP.
Wed, 2011-03-30 04:40:45 - LCP is allowed to come up.
Wed, 2011-03-30 04:41:45 - Initialize LCP.
Wed, 2011-03-30 04:41:45 - LCP is allowed to come up.
Wed, 2011-03-30 04:42:42 - CHAP authentication failed
Wed, 2011-03-30 04:42:42 - LCP down.
Wed, 2011-03-30 04:42:45 - Initialize LCP.
Wed, 2011-03-30 04:42:45 - LCP is allowed to come up.
Wed, 2011-03-30 04:43:45 - Initialize LCP.
Wed, 2011-03-30 04:43:45 - LCP is allowed to come up.
Wed, 2011-03-30 04:44:45 - Initialize LCP.
Wed, 2011-03-30 04:44:46 - LCP is allowed to come up.
Wed, 2011-03-30 04:45:46 - Initialize LCP.
Wed, 2011-03-30 04:45:46 - LCP is allowed to come up.
Wed, 2011-03-30 04:46:46 - Initialize LCP.
Wed, 2011-03-30 04:46:46 - LCP is allowed to come up.
Wed, 2011-03-30 04:47:46 - Initialize LCP.
Wed, 2011-03-30 04:47:46 - LCP is allowed to come up.
Wed, 2011-03-30 04:48:29 - CHAP authentication failed
Wed, 2011-03-30 04:48:29 - LCP down.
Wed, 2011-03-30 04:48:46 - Initialize LCP.
Wed, 2011-03-30 04:48:46 - LCP is allowed to come up.
Wed, 2011-03-30 04:49:46 - Initialize LCP.
Wed, 2011-03-30 04:49:46 - LCP is allowed to come up.
Wed, 2011-03-30 04:50:46 - Initialize LCP.
Wed, 2011-03-30 04:50:46 - LCP is allowed to come up.
Wed, 2011-03-30 04:51:46 - Initialize LCP.
Wed, 2011-03-30 04:51:46 - LCP is allowed to come up.
Wed, 2011-03-30 04:52:46 - Initialize LCP.
Wed, 2011-03-30 04:52:46 - LCP is allowed to come up.
Wed, 2011-03-30 04:53:47 - Initialize LCP.
Wed, 2011-03-30 04:53:47 - LCP is allowed to come up.
Wed, 2011-03-30 04:54:38 - CHAP authentication failed
Wed, 2011-03-30 04:54:38 - LCP down.
Wed, 2011-03-30 04:54:47 - Initialize LCP.
Wed, 2011-03-30 04:54:47 - LCP is allowed to come up.
Wed, 2011-03-30 04:55:47 - Initialize LCP.
Wed, 2011-03-30 04:55:47 - LCP is allowed to come up.
Wed, 2011-03-30 04:56:47 - Initialize LCP.
Wed, 2011-03-30 04:56:47 - LCP is allowed to come up.
Wed, 2011-03-30 04:57:47 - Initialize LCP.
Wed, 2011-03-30 04:57:47 - LCP is allowed to come up.
Wed, 2011-03-30 04:58:47 - Initialize LCP.
Wed, 2011-03-30 04:58:47 - LCP is allowed to come up.
Wed, 2011-03-30 04:59:47 - Initialize LCP.
Wed, 2011-03-30 04:59:47 - LCP is allowed to come up.
Wed, 2011-03-30 04:59:57 - CHAP authentication failed
Wed, 2011-03-30 04:59:57 - LCP down.
Wed, 2011-03-30 05:00:48 - Initialize LCP.
Wed, 2011-03-30 05:00:48 - LCP is allowed to come up.
Wed, 2011-03-30 05:01:48 - Initialize LCP.
Wed, 2011-03-30 05:01:48 - LCP is allowed to come up.
Wed, 2011-03-30 05:02:48 - Initialize LCP.
Wed, 2011-03-30 05:02:48 - LCP is allowed to come up.
Wed, 2011-03-30 05:03:48 - Initialize LCP.
Wed, 2011-03-30 05:03:48 - LCP is allowed to come up.
Wed, 2011-03-30 05:04:48 - Initialize LCP.
Wed, 2011-03-30 05:04:48 - LCP is allowed to come up.
Wed, 2011-03-30 05:05:02 - CHAP authentication failed
Wed, 2011-03-30 05:05:02 - LCP down.
Wed, 2011-03-30 05:05:48 - Initialize LCP.
Wed, 2011-03-30 05:05:48 - LCP is allowed to come up.
Wed, 2011-03-30 05:06:48 - Initialize LCP.
Wed, 2011-03-30 05:06:48 - LCP is allowed to come up.
Wed, 2011-03-30 05:07:48 - Initialize LCP.
Wed, 2011-03-30 05:07:48 - LCP is allowed to come up.
Wed, 2011-03-30 05:08:49 - Initialize LCP.
Wed, 2011-03-30 05:08:49 - LCP is allowed to come up.
Wed, 2011-03-30 05:09:49 - Initialize LCP.
Wed, 2011-03-30 05:09:49 - LCP is allowed to come up.
Wed, 2011-03-30 05:10:46 - CHAP authentication failed
Wed, 2011-03-30 05:10:46 - LCP down.
Wed, 2011-03-30 05:10:49 - Initialize LCP.
Wed, 2011-03-30 05:10:49 - LCP is allowed to come up.
Wed, 2011-03-30 05:11:49 - Initialize LCP.
Wed, 2011-03-30 05:11:49 - LCP is allowed to come up.
Wed, 2011-03-30 05:12:49 - Initialize LCP.
Wed, 2011-03-30 05:12:49 - LCP is allowed to come up.
Wed, 2011-03-30 05:13:49 - Initialize LCP.
Wed, 2011-03-30 05:13:49 - LCP is allowed to come up.
Wed, 2011-03-30 05:14:49 - Initialize LCP.
Wed, 2011-03-30 05:14:49 - LCP is allowed to come up.
Wed, 2011-03-30 05:15:50 - Initialize LCP.
Wed, 2011-03-30 05:15:50 - LCP is allowed to come up.
Wed, 2011-03-30 05:15:53 - CHAP authentication success

All it tells us is that the modem was slow at authenticating, the WAN uptime in the router statistics should allow you to work out when it last resynced.

It takes up to five days of a better speed for the IP Profile to recover, one bad sync resets this. Now for big changes it should be faster, but depends on what the line is doing.

If BRAS stuck it will NEVER change, but the ISP should be able to look at the data for your line and figure things out, if they are any good