Need advice on next step to get stable sync

Hi, I started this project here but now have some proper line stats:

noise margin upstream: 18 db
output power downstream: 18 db
attenuation upstream: 31 db

noise margin downstream: 5 db
output power upstream: 12 db
attenuation downstream: 60 db

[ SAR Counters ]
inPkts = 0x00000609, inDiscards = 0x00000099
inF4Pkts = 0x00000000, inF5Pkts = 0x00000000
inDMATaskEnd = 0x00000000, inBufErr = 0x00000000
inCrcErr = 0x0000003a
inBufOverflow = 0x00000002, inBufMaxLenErr= 0x00000000
inBufLenErr = 0x0000005d, inBufDescrOV = 0x00000000
outPkts = 0x00000862, outDiscards = 0x00000000
outF4Pkts = 0x00000000, outF5Pkts = 0x00000000
softRstCnt = 0x00000000


The router (zyxel) was syncing at 4100 in ADSL2 mode, but was pretty unstable, keeping sync for only a fw minutes each time. I managed to set it to Ad.gmt or whatever it is, and it synced a 3700 mostly, and was more stable.

I see however that the noise margin of 5 is probably the problem. Can I get anything done about this? can talktalk tell the msan to not let my router connect at such high speeds? I am after stability rather than speed.

You can ask TT second line support, to increase "your noise margin downstream" try 9 or 12dB.

Perhaps one of the TT reps on here will contact you.

Brunel

Ask 2nd line CS for a 2meg fixed rate service. This should be more stable than the rate adaptive service you are on now. You are on a long line which doesn't help.

Increasing the target noise margin from 6dB to 9 or 12 can also help. CS do this too.

Have you tried getting stats from the test socket inside the removeable bottom half of your master socket?

then we can see if your internal wiring is in need of improvement.

the stats are done both direct into the test socket and direct-in via a filter and with one phone line attached (2 handset wireless affair). Bypassing the internal extension wires makes alot of difference which I figured last week, but adding the short phone wire via the filter doesnt make a huge amount of difference...speed tests still ranged from 1.1mbit to 3.0 mbit variously one after the other. I got a couple of tests at 3.0 direct in and at least one with phone connected. Sync didnt seem to mind much either.

Yes line is about 6km by road.

What is the method of getting to 2nd line CS, do you have to ring 1st line first?

1st line -> 2nd line -> CPWN -> BT etc.

have updated the thread linked in my 1st post

Can someone merge these threads?

:-)