More FTTC anomalies

[zappaDPJ]

After a couple of months of relative stability but ridiculous low throughput speeds (see the attachment graph), it's all gone pear shaped again. I'm losing sync and being continually served the BT wholesale splash screen when the connection is up.

When this has happened before my throughput goes up dramatically and becomes consistent while my ping drops substantially. It's done the same thing this time.
 




Microsoft Windows [Version 6.1.7600]
Copyright (c) 2009 Microsoft Corporation.  All rights reserved.

C:\Users\zappaDPJ>ping idnet.net

Pinging idnet.net [212.69.36.10] with 32 bytes of data:
Reply from 212.69.36.10: bytes=32 time=7ms TTL=59
Reply from 212.69.36.10: bytes=32 time=7ms TTL=59
Reply from 212.69.36.10: bytes=32 time=7ms TTL=59
Reply from 212.69.36.10: bytes=32 time=7ms TTL=59

Ping statistics for 212.69.36.10:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 7ms, Maximum = 7ms, Average = 7ms

C:\Users\zappaDPJ>


I seem to get a stable, low throughput/high ping connection or a totally unstable high throughput/low ping connection with nothing in between I assume BRAS is what's doing it but why such a swing from one end to the other?