Bandwidth not used when streaming videos

Hello,I have now had this problem for a long time and I could not find any answers anywhere. Sometimes -not everytime- when I stream a movie or series, or also when I watch videos on YouTube the media I want to play just does not load. It does not buffer and then it stops playing for a little while, only to load like 10 more seconds before it stops again. At first I thought my pc was just running some updates in the background when this happens, but after I checked in the taskmanager it showed that no bandwidth was used at all. When I tried different browsers the problem appeared on all of the