Due to WFO, I have set the QoS up on our home WiFi Router and assigned different computers in the household to different groups. This was to prevent some users grabbing 100% upload bandwidth on large file uploads when other users were in VOIP meetings. The basic settings are 10%, 30% and 60%. The problem is that whenever I assign an Apple Laptop to the 10% group, the user has severe networking problems. Since we have a 20Mbps uplink and 80Mbps downlink, then why is this a problem of  Apple users?