Yeah, even using hyperoptic's own speed test it drops.
Ping times increase, but generally around 20-30
Link to Thinkbroadband speed test result - https://www.thinkbroadband.com/_assets/speedtest/but...
Whats more annoying is no-one else in my development is reporting a problem - it may be that there are onlya few on the gigabit speed setting - some maybe havent even noticed.
As you can see, the down speed is pitiful for a gigabit connection that used to perform at or about 850Mb/s constantly.