When I am taking part in Skype for Business or Zoom (an American preferred calling system) video calls, and indeed even when watching You Tube, the audio on the laptop is intermittently breaking up, sometimes making it impossible to stay on the call. I get low on resources messages and also messages about poor internet connection.
The internet is fine as my colleagues do not suffer from this, but we've tried different wifi connections and a wired connection as well. The laptop has 8G of RAM that is rarely more than 60% used, often 40-50% which seems typical. CPU and wifi graphs in Task Manager, performance tab, likewise are quite low. It's an i5-3210M running W10.
Where else can I look for an issue?