I presume you're referring to the TalkTalk supplied Huawei Echolife 532? If so its a pile of junk! It also used to sync slightly higher than my Billion 7800N but re-synced 1-2 times every week whereas the Billion stays synced for months. I can only assume that the Echolife 532 syncs higher than it should, resulting in frequent disconnections.
If you don't have any line issues, i would use the Billion and bring down the SNR to 2-3db and you will find the Billion should sync around the 9 meg mark. You will find the Billion has no problem holding onto a line with only a few db noise margin for weeks at a time
TalkTalk Plus LLU ADSL2+ connected @ 18015/1019 kbps
Attenuation 27db down / 9db up
Noise Margin 2.9 db down / 12db up
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Edited by baby_frogmella (Sun 10-Jul-11 19:13:20)