Everything is fine with your wireless router or access point for years or months. Then one day it starts to drop connections every 2 hours or so for no apparent reason. The router doesn’t crash and the router doesn’t add an entry into its log when this happens. In fact, nothing has changed in your network. It just doesn’t work all the sudden.
There may be a new wireless device within range that has caused yours to malfunction. It could be the office or home next door. So, login to your router and move it to a new spot on the big three positions of the wireless router spectrum. 1, 6, or 11.
Give it some time and move it again if the first new position doesn’t clear up the dropped connections.