Drop in broadband speed after 1800 effecting buffering on my sky stream

[Mal20]

During daylight my broadband speed has been around 60 mbps and sky stream has been fine after  around 1800 the broadband speed has dropped down to 6-7 mbps which causes buffering on stream

[GD1]

@Mal20  Your duplicate thread has been removed as you raised this one.

Please can you post your router stats so the forum can advise on any issues. This link explains how to do that https://helpforum.sky.com/t5/Broadband/How-to-find-your-Sky-Broadband-router-stats/td-p/2855717#