My BOINC stopped uploading/downloading about 24 hours ago. The remaining active work units completed and trailed off, and I noticed that both uploads and downloads had stalled, with ever-lengthening delays until retry. I spent all today thinking their servers were now overloaded, as with FaH's and just left it running.
By chance, I loaded up my network adblocker (AdGuard Home) just now... and one of my filter lists, Energized Ultimate, added boinc.bakerlab.org (Rosetta's server) to their blacklist yesterday. Idiots! I white-listed the domain and BOINC is back up and running at full tilt again. Shame about the work time / points I lost during the downtime though. I'm now down to 5th place on the OcUK leaderboard.
You all might want to add boinc.bakerlab.org to your Pi-Hole/AdGuard/pfblockerNG whitelists!
Just as interesting, imo, is the little dip on 25th March. That was when I followed
@ChrisD. advice and undervolted and underclocked my 3960X. The performance/points drop is minimal as you can see, considering it's now pulling so much less electricity (100W now vs 280W before).