Quick update for those who helped or may be interested.
Speed vastly improved but variable. We’ve had folks ringing us and engineers in to check stuff so certainly seem to have prodded ‘them’.
At the moment monitoring speed during the day and it seems really good in the morning (4.7-5.3) but gradually tails off during the day to 1 (or 0.1 again on Weds night). We’ve to report back and there’ll be further investigation.
Now to download STW while it’s fast!