I didn't notice any change in my service with Zen.
Just a thought. By the times on your graph and speed test it seemed to coincide with Amazon streaming tonight's Premier League games.
We have a winner. That produced record traffic levels on ISPs' networks and, hence, record levels on BT Wholesale's.
I'm not going into sources but I understand that Sky, TalkTalk and Virgin Media were okay, however BT Retail had some severe regional performance issues due to capacity issues with Wholesale.
Seems a super-duper, telemetry-driven, cloud-powered, software-defined *insert buzzwords here* network still needs adequate capacity overhead to manage exceptional events.
This doesn't really bode well for the future, either. Last night's Premier League coverage also triggered capacity issues.
The cheaper Openreach 550 and 1000 Mb products are coming online in March.
That'll be an experience for the Wholesale network when the next 150 GB+ triple A game is released and gamers, those folks likely to want the latest and greatest broadband to go with their latest and greatest rigs, start downloading en masse.
I wonder if we're seeing Wholesale's historic periodic capacity issues again or if they are gone for good?
ISPs and wholesale providers have a talent for monitoring individual ports but seem to have a blind spot for the lead times for installing new chassis and backhaul to feed them when they run out of ports on line cards then run out of line card slots for chassis.
Smart networks that can move traffic around are great but they only work if there's capacity available to move traffic on to. Past 2 night on BT Wholesale it looks as though there has not been - the Amazon streams are killing them.
Be interesting to see if it's a direct regional correlation between the area where the footy is likely to have been most popular, London-ish yesterday, Liverpool day before.
Building better networks, not just faster ones.