Line Quality 

The links below are to the results of external dslreports.com line quality tests conducted to my IP address.

line quality report   27 July 2007    15% - 29% packet loss xtra.co.nz

line quality report   27 July 2007    12% - 19% packet loss xtra.co.nz

line quality report   27 July 2007    15% - 19% packet loss xtra.co.nz

line quality report   28 July 2007    15% - 15% packet loss xtra.co.nz

line quality report   30 July 2007    19% - 15% packet loss xtra.co.nz

line quality report  01 August 2007  30% -  7% packet loss xtra.co.nz

line quality report  28 September 2007    < 33% packet loss medium bandwidth stream

line quality report  14 October 2007        100% packet loss at so-1-1-2.0-sjbr2.global-gateway.net.nz [203.96.120.82] *1

DSLAM changed 27 October 2007

line quality report 27 October 2007  70% - 77% packet loss xtra.co.nz without line filter

line quality report 27 October 2007  75% - 80% packet loss xtra.co.nz without line filter

line quality report 27 October 2007  72% - 82% packet loss xtra.co.nz without line filter (different computer)

line quality report 28 October 2007  72% - 82% packet loss xtra.co.nz without line filter

line quality report 28 October 2007 Up to 100% packet loss xtra.co.nz with line filter

line quality report 28 October 2007 Up to 100% packet loss xtra.co.nz with line filter

line quality report 28 October 2007 Up to 100% packet loss xtra.co.nz with line filter (different computer)

line quality report 06 November 2007    < 36% packet loss medium bandwidth stream (Throttled)

I have come to the conclusion that it is futile to continue conducting these tests as the routers which appear to be dropping packets are set not to respond to pings from upstream. For example, in the above tests results, the 7th hop on the tests from West Coast are the 4th hop from my computer as shown in the screenshot below. Namely MDR-IP03e-3-1-0.akbr3.global-gateway.net.nz [202.50.236.114]. It does appear to be set to respond to downstream ping packets, although it is dropping those at a rate of about 75%.