For the last few days my usually top-speed astraweb & blocknews download speeds have dropped by a quarter in the evenings.
I'm on Sky Fibre Unlimited which syncs at 39998 down, and used to get a solid 4.3 MB/s for every download. As of 5 days ago they've been around 2.8MB/s in the evenings. I've tried different ports and different providers, but everything usenet-related downloads at 2.8MB/s. My Router Stats haven't changed and neither has my PC setup or software. If I run a speed test during these times I get the usual speeds. Browsing speeds aren't affected.
Earlier this afternoon I tried a download and got 4.3MB/s again, so I thought the problem was sorted, but as of this evening, it's back to 2.8MB/s. This really feels like some kind of traffic management. Anyone else experiencing anything similar?