Flaky speeds on 50mb (possibly power level related)

[Failswitch]

Hey guys,

We had a tech around for the 50mb upgrade a week back but I've noticed varying download speeds. I get erratic speeds from Giganews at times varying from 5.9 MB/s to 1~ MB/s then back to optimum. I'm just testing again with two simultaneous Linux distros on download from the blueyonder FTP site. One download sustains around 2.5 MB/s whilst the other varies from anywhere up to 3.1 MB/s to 500 KB/s.

The new and old modem pages are quite different so I think I'm reading the upload power level at 57 which does seem to be hitting the upper limit, I remember it was around the 39 level with the old Ambit modem. Here are the downstream/upstream shots from the modem page as well as the event log. Any advice is appreciated.

http://www.cableforum.co.uk/board/attachment.php?attachmentid=18909&stc=1&d=1256586863

http://www.cableforum.co.uk/board/attachment.php?attachmentid=18910&stc=1&d=1256586863

http://www.cableforum.co.uk/board/attachment.php?attachmentid=18911&stc=1&d=1256586863

[Ignitionnet]

Exactly as you suggested your upstream transmit power is too high and you need an engineer visit to remedy this.

EDIT: There may also be an area fault however, your upstream modulation is QPSK which isn't normal for the 50Mbit service. I hope it's an area fault anyway as it does look rather silly if it's intentional configuration. That said if it were the normal 16QAM you'd not be online at all.

I would imagine it's an area issue and your local network guys should be dealing with it but definitely call in.