Yes J0hn, I appreciate that this is the case, I have already observed this as my line did originally convert from ADSL and went fast path, then after a few days DLM did re-synch with DS interleaving, totally understandable as I had indeed been getting high ES rates before DLM intervened.
After 4 days, DLM put me back on DS fast path, as you said, both events occured in the early hours of the morning.
I did obey the "at least 2 X 15min. period delay" rule before re-booting the modem, in fact I waited over an hour to keep DLM stat's happy.
However, there certainly appears to be a grey area regarding the application of G.Inp, I have diligently read all available kitz information on the subject and posted on this forum but still don't have a clear understanding on this.
I'am beginning to believe that my Huawei cabinet is not G.Inp enabled !