DSl carrier dropping

I have suddenly started getting a lot of dropouts in my DSL connection, it happens mostly in the evenings after 7pm and continues until early morning...

from my router log:
Sep 16 02:34:54> DSL out of sync
Sep 16 02:34:58> DSL Carrier is training
Sep 16 02:35:08> DSL Carrier is down
Sep 16 02:36:38> DSL Carrier is training
Sep 16 02:37:14> DSL in Sync
Sep 16 02:37:18> DSL Carrier is up
Sep 16 02:37:18> sar read trained mode (1)(ADSL_G.dmt)
Sep 16 02:37:19> pingStat 2, oamHdr 230 result 0
Sep 16 02:37:19> pingStat 2, oamHdr 200 result 0
Sep 16 02:37:19> pingStat 2, oamHdr 280 result 0
Sep 16 02:37:19> pingStat 2, oamHdr 240 result 0
Sep 16 02:37:19> pingStat 2, oamHdr 260 result 0
Sep 16 02:37:19> pingStat 2, oamHdr 600 result 0
Sep 16 02:37:19> pingStat 2, oamHdr 230 result 0
Sep 16 02:37:19> pingStat 2, oamHdr 800230 result 0
Sep 16 02:37:19> pingStat 2, oamHdr 2B0 result 0
Sep 16 02:37:19> pingStat 2, oamHdr 330 result 0
Sep 16 02:37:19> pingStat 2, oamHdr 3B0 result 0
Sep 16 02:37:19> pingStat 2, oamHdr 8002B0 result 0
Sep 16 02:37:19> pingStat 2, oamHdr 800330 result 0
Sep 16 02:37:19> pingStat 2, oamHdr 8003B0 result 0
Sep 16 02:37:19> ppp0
Sep 16 02:37:21> PPPD Terminated Through Signal
Sep 16 02:37:21> Connection terminated.
Sep 16 02:37:22> pppd 2.4.1 started by root, uid 0
Sep 16 02:37:22> Connect: ppp0 {--}
Sep 16 02:37:22> closing 0.0.38.5
Sep 16 02:37:22> tn7sar_teardown_complete called for channel 0
Sep 16 02:37:22> ChannelTeardown returned rc = 0
Sep 16 02:37:25> PPPoA Connect with IP Address xx.xxx.xx.xx
Sep 16 02:37:25> PPPoA Connection Successfully Established
Sep 16 02:37:25> PPPoA Connect with Gateway IP Address: xx.xxx.x.x
Sep 16 02:37:25> WAN IP address xx.xxx.xx.xx
Sep 16 02:37:25> WAN gateway xx.xxx.xx.xx
Sep 16 02:37:25> primary DNS address xx.xxx.xx.xx
Sep 16 02:37:25> secondary DNS address xx.xxx.xx.xx
Sep 16 02:38:56> DSL out of sync
Sep 16 02:39:08> DSL Carrier is training
Sep 16 02:39:18> DSL Carrier is down
Sep 16 02:43:07> DSL in Sync
Sep 16 02:43:08> DSL Carrier is up

the line syncs at various different rates (from 6000 > 7500)
I have tried different router, microfilter and dsl cable.

I am pretty sure this means there is trouble with the line or exchange not the ISP

can anyone confirm the fault for me so I can beat the right people to death ?

thnx
Rob

How long have you been on ADSL Max ?

What is your ISP ?

What ADSL router are you using ?

Can you supply your line stats ?

Sounds like it's interference from AM radio transmissions (ADSL uses the same frequency range as AM radio).
AM radio signals propogate further during hours of darkness (exactly when you report connection problems), and are known to cause problems with ADSL lines.

There may be some things you can do, but without knowing further details of your installation, it's difficult to help further.

Info that will help us: -
1. Where is your router (or modem) connected to the 'phone line (extension or master socket)?
2. Are you using ADSL micro-filters, or an ADSL combined face-plate/splitter/filter?
3. Do you have any telephone extensions wired in your home?
4. Is the BT 'phone cable supplying your home underground or overhead wire from poles?
5. What are your router stats (downstream line attenuation, sync and SNR/noise margin) during daylight hours (when the line is more stable)?
6. What are the same stats for hours of darkness?
7. Does your SNR/noise margin vary, or swing wildly, when connected?

The router is connected to an extension socket in my room, I use micro filters at the two other telephone points in the house.(plus this one of course)

The BT cable coming into the house is overhead.

Currently
:

Downstream

SNR 6
Att 21
Data 7840

Upstream

SNR 19
att 12
Data 448

when it is most unstable the snr & att figures are pretty much the same, but the data rate downstream varies wildly between 6500ish to 7500ish.
this doesnt seem to be day night related, as it starts before it is dark and continues after it is light.

Until Thursday I had no problems at all, could give exact figures for the line until then though. I live in Leeds and we had the "mini-Tornado" which saw my netgear 834 Route,r two lan cables and the Lan card in 1 PC "fried" by a nearby lightning strike.

I replaced the router with my back-up d-link 514(which suffered the dropouts constantly day/night), but bought a new 834G netgear the next day. The new netgear refused to even see a line, so I took it back to the shop and exchanged for a d-link G624T. This is currently in use and suffers most drops early evening until morning (though this stabilised last night with not so many drops).

In short I belive that the massive storm we have had in some way has damaged equipment outside the house as well as the items I have replaced inside. It does seem to have improved over the past couple of days , but is still not up to the pre-storm standard (where 1 drop in a week would be significant)

I have been on Evolution 4 since it was launched in May

Eclipse

Currently D-Link G834T, same problem showing with a D-Link 514

right now:

Downstream

SNR 6
Att 21
data 7840

upstream

SNR 19
att 12
data 448