After suggestion above, I set the WiFi Channel from 'auto' to 1 (after surveying other channels being used by other WiFi units of neighbors). This seems to have helped, I don't remember a WiFi drop...

I basically have the same problem. Model : TL-WR940N Firmware Version: 3.16.9 Build 161107 Rel.69553n Hardware Version: WR940N v3 00000000 I do know that this router commonly drops the connection...