check your monitor cable connections secure ... it can be knocked out by cats/dogs/legs. Check temps of system. ensure you got at least 18GB free on your ssd (this is for windows pagefile growth).
On PC? Could be a bad connection to the server. On mobile/phone? Could be getting choked by your carrier. Despite the laws on net nuetrality, for now, carriers like Verizon have very recently been nailed for throttling connections to youtube and netflix.
What are your system specs? If running a graphics card and not intel iGPU you could try running DDU and see if that helps. Run it in safe mode. When it reboots after running reinstall your drivers.
check your monitor cable connections secure ... it can be knocked out by cats/dogs/legs. Check temps of system. ensure you got at least 18GB free on your ssd (this is for windows pagefile growth).