How to check if there is problem with wireless part of 2.4G wireless keyboard + mouse set with USB receivier

How to check if there is problem with wireless part of 2.4G wireless keyboard + mouse set with USB receivier

Is there any way to check if the trouble with keyboard and/or mouse becoming unresponsive, where keyboard and mouse are from 2.4G wireless optical mouse & standard keyboard set, is caused by some interference with wireless signal, problem with USB receiver, or problem with operating system (with software)?