Disappointed

[#1]

Following a lot of problems in the last quarter of 2015 (ref 111959711) we finally got a reasonable BB speed. On 25/12 I informed Plusnet  that, subject to this speed of 1.6 continuing we would not require any further assistance.
In fact between then and 5/2/16 our speed ha varied between 1.6 and 1.9.
BUT....on 6/2 , our speed dropped and has varied between .4 and .7!!.
Why might this be? Could it have anything to do with OPENREACH working around here around the 6 Feb?
Please help.

[#2]

Hi there and sorry to see you've been having problems.
Tests aren't revealing any obvious causes but I can see that your connection has been dropping out fairly frequently.
Please report a fault with us online at http://faults.plus.net and we'll get you sorted.