If you are asking ‘is my line clean or impacted ‘, OR don’t know , and it doesn’t really matter, if whatever speed you get is within the clean range ( self explanatory) your line is clean ( or clean enough ) if it’s within the impacted range, then it’s possible there is something that can be improved, possibly within your curtilage, possibly outside of it.....if your question is, if the speed were within the impacted range , can I be allowed to leave, then it depends....the thing impacting the line may be entirely within your area of responsibility, so the answer would initially be ‘No’, if you are sure that the line is OK within your ‘boundary’ but is in the impacted range , then you could report a fault, with the usual provisos, if OR cannot get your line into the clean range, then presumably even though the line is defect free its still underperforming according to the estimate so , presumably you can leave...but borderline cases like yours , chances are the onus would be on you to show a continued impacted performance, not simply saying , 3 or 4 days a month it slips occasionally into impacted....in my case the difference is 2.4Mb, ( 3% of my speed) so it’s hardly a difference , and certainly not noticeable in any meaningful way
