Whilst I'm on Fibre 80/20 with PlusNet I have noted that regularly my speeds drop to a lower level eg 20/10 and a router restart cures the issue. At present I'm using the Plusnet Hub/Modem.

I appreciate the poster mentions ADSL2+, but since I've been with PlusNet I've noted this odd sort of speed issue. I've not checked as of yet if it's modem orientated or if indeed Plusnet are dabbling in some way. My line sync remains the same ie 80/20 throughout, so what causes these slow downs that only a PN Hub restart can cure is beyond me at present.

Speed drops that are solved with a restart used to be signs of a failing router - well back on the ADSL days.

Could be that and or/ the fact the one hub is garbage.

I have had a few problems with the Plusnet Hub with wifi too being an issue, where it only likes to play ball with certain chipsets. I've had an alternative replacement sitting in it's box (TpLink VR900) for some time collecting dust as I've not been in a position to set it up.
On a positive note though it has given me an oportunity to see how the line holds up with PlusNets gear so to speak.

I've had my line profile reset once by Plusnet for slow speeds, but this frequent dropping of speed where the line sync figures remain the same is odd. At first i wondered if it was a type of traffic management in play, but wouldn't my speeds still be effected after the PN Hub restart if that were the case? Luckily a restart does bring speeds back up to where they are supposd to be.

Perhaps it is a faulty PN HuB - I'll get the TPlink VR900 sorted soon and hopefully prove what is causing the regular speed issue.