Happening on mine, on BTW.
It's quite common, on ADSLx as well. I often had spells of it on Plusnet and IDNet. Lots of people have reported it on several ISPs, but as far as I know it has never caused any real life problems to anyone.
For me it started here
Kindness isn't going to cure the world of all its awfulness but it's a good place to begin. Daisy Ridley.
My broadband basic info/help site - www.robertos.me.uk.
Domains, site and mail hosting - Tsohost
Connection - AAISP Home::1 80/20. Sync 57825/13835kbps @ 600m. - BQM