Wireless adapters inherently drop packets. Its inevitable as interference from other devices running at 2.4Ghz happens all the time. Linus did a video about this a while back.
You have 2 options to alleviate the problem:
1. (If your wireless adapter allows it) Run your wireless adapter and router at 5Ghz. You will experience hardly any interference at this frequency.
2. Use a wired connection.